{"id":10639,"date":"2026-06-12T19:56:03","date_gmt":"2026-06-12T16:26:03","guid":{"rendered":"https:\/\/bidak-co.com\/%d8%b4%d9%88%d8%b1%d9%87-2\/"},"modified":"2026-06-15T18:44:26","modified_gmt":"2026-06-15T15:14:26","slug":"efflorescence-2","status":"publish","type":"post","link":"https:\/\/bidak-co.com\/en\/efflorescence-2\/","title":{"rendered":"What causes efflorescence on building facades? Accordingly, here is a complete guide to removing efflorescence from brick and stone"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10639\" class=\"elementor elementor-10639 elementor-10469\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d3c8c98 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d3c8c98\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-593d6d9\" data-id=\"593d6d9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8b62789 elementor-widget elementor-widget-heading\" data-id=\"8b62789\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"> where do white stains on the facade come from? Accordingly, a complete review of the causes of brick and stone efflorescence<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3999b87 elementor-widget elementor-widget-text-editor\" data-id=\"3999b87\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">You have probably experienced this before.<\/span><\/strong><span class=\"\">\u00a0For example, you look at a newly constructed <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/en.wikipedia.org\/wiki\/Building\">building<\/a> <\/span><\/span>with a beautiful brick or natural stone facade. A few months later, you pass by it again. Suddenly, white, powdery stains appear on the surface \u2014 as if someone has sprinkled flour or stone powder on the wall. Technically, this phenomenon is called\u00a0<\/span><span style=\"text-decoration: underline;\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/bidak-co.com\/en\/efflorescence\/\"><strong><span class=\"\">efflorescence<\/span><\/strong><\/a><\/span><\/span><span class=\"\">.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Many people think these stains only make the building look ugly and have no other consequences. However, this way of thinking is wrong. In fact, sometimes behind this issue lies a much bigger problem that can seriously damage the texture of the <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/product\/brick-resin\/\">brick<\/a> <\/span><\/span>and stone. Therefore, in this article, I want to understand step by step: what exactly efflorescence is, how it forms, why it doesn&#8217;t go away even after washing, and \u2014 more importantly \u2014 how to prevent it.<\/span><\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">The three main causes of facade efflorescence that lead to white stains on brick and stone<\/span><\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Why does facade efflorescence return after washing?<\/span><\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Types of building efflorescence: which one is only cosmetic and which one is destructive?<\/span><\/strong><\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">How to prevent facade efflorescence? Accordingly, 6 simple and practical solutions<\/span><\/strong><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2908a34 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2908a34\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4344f60\" data-id=\"4344f60\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a8a131e elementor-widget elementor-widget-heading\" data-id=\"a8a131e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">the three main causes of white stains on brick and stone. Accordingly, here they are<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-181735b elementor-widget elementor-widget-text-editor\" data-id=\"181735b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">For efflorescence to occur, three factors must come together at the same time and place. If just one of these three is missing, those white stains will not appear. Therefore, let&#8217;s first understand these three factors properly.<\/span><\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First: water-soluble salts<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Salts are everywhere. However, salt is not just the white table salt we put on our meals. In construction science, any compound that can dissolve in water and remain as white crystals after the water evaporates is considered a salt. These salts can enter the building system from several sources.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The first source is the building materials themselves. For example, some bricks contain salts due to the type of clay from which they were fired. Similarly, some natural stones have their own mineral content. Additionally, the cement used in mortar is one of the largest sources of salt production. When cement reacts with water, it releases calcium hydroxide, which later turns into the white salt on the surface.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The second source is the water used on the construction site. Specifically, if the water used for mixing mortar or washing the facade is salty or contains high mineral content, it introduces salts into the building. For instance, deep well water in some parts of Iran is rich in minerals.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The third source is the surrounding environment. De-icing salts spread on the ground in winter, salt present in the air in coastal areas, or even natural salts in the soil can all penetrate the walls through rising damp.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second: water to dissolve the salts<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Salt by itself cannot do anything. Therefore, there must be water to dissolve the salt. This is referred to as moisture. Moisture can attack brick and stone in several ways.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The first path is\u00a0<\/span><strong><span class=\"\">rainwater infiltration<\/span><\/strong><span class=\"\">. If the facade is exposed to heavy rain and the materials have high water absorption, rainwater enters the depth of the wall and collects the salts.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The second path is\u00a0<\/span><strong><span class=\"\">ground moisture and rising damp from below<\/span><\/strong><span class=\"\">. If the damp-proof course in the foundation has not been properly installed, groundwater rises upward through capillary action. Sometimes this moisture reaches several meters up the wall.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The third path is\u00a0<\/span><strong><span class=\"\">leaks from pipes and installations<\/span><\/strong><span class=\"\">. For example, a cracked sewage or hot water pipe inside the wall can release the salts present in the mortar and bring them to the surface.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The fourth path is\u00a0<\/span><strong><span class=\"\">construction moisture<\/span><\/strong><span class=\"\">. Specifically, the water used for grouting or washing the facade after completion, if it does not have a chance to fully escape, remains inside the wall and later appears as efflorescence.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Third: a driving force to bring the saltwater solution to the surface<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Now we have salt, and we have water. Accordingly, what causes this saltwater solution to move toward the facade surface and evaporate? Two main forces perform this task.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The first is\u00a0<\/span><strong><span class=\"\">capillary force<\/span><\/strong><span class=\"\">. Brick, stone, and mortar all have fine pores. These pores act like a bundle of thin straws. Water is naturally drawn upward through these narrow pathways \u2014 just like oil rising in a lamp wick. The finer the pores, the higher the water rises. This is precisely why efflorescence usually starts at the bottom of the wall and moves upward.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The second is\u00a0<\/span><strong><span class=\"\">evaporation force<\/span><\/strong><span class=\"\">. When the sun shines on the facade, it heats the surface. Surface water evaporates. Consequently, this evaporation causes the saltwater solution from behind to move toward the surface to replace the evaporated water. This cycle repeats constantly. Accordingly, the water leaves, and the salts remain on the surface. The next day, the same thing happens again. Layer upon layer of salt accumulates until you see those thick, ugly white stains.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Therefore, imagine these three enemies have gathered together. The materials contain salt. Water has reached them from somewhere. And the sun is evaporating the water. The result is nothing less than the disaster of efflorescence.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Now the next question is: why do some buildings suffer from efflorescence while others do not? The answer is simple. Not every building gets wet. Not every facade is exposed to strong wind and sun. However, when all three conditions align, it does not matter whether your building is new or a hundred years old \u2014 it will develop efflorescence.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Now, let&#8217;s move on to the next section: why efflorescence does not go away with washing, and what types of efflorescence exist.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-23a059a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"23a059a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-58296b5\" data-id=\"58296b5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-837a6d8 elementor-widget elementor-widget-image\" data-id=\"837a6d8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"394\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195736.png\" class=\"attachment-large size-large wp-image-10476\" alt=\"\u0634\u0648\u0631\u0647\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195736.png 849w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195736-300x148.png 300w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195736-768x378.png 768w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195736-600x295.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-db85bf8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"db85bf8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c5fc664\" data-id=\"c5fc664\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fd4273a elementor-widget elementor-widget-heading\" data-id=\"fd4273a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">why does facade efflorescence come back after washing? Accordingly, here's the explanation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7669b97 elementor-widget elementor-widget-text-editor\" data-id=\"7669b97\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">You have certainly experienced this.<\/span><\/strong><span class=\"\">\u00a0For example, you take a damp cloth and, with great effort, wipe those white stains off the brick or stone. A few days later, they return to exactly where they were \u2014 as if you had never bothered at all. Naturally, this frustrates many people. They think either they didn&#8217;t do the job properly or they used weak cleaning products. However, the truth is something else entirely.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Efflorescence is not a simple surface layer that just sits on the stone. In fact, efflorescence is the\u00a0<\/span><strong><span class=\"\">tip of the iceberg<\/span><\/strong><span class=\"\">. The white layer you see is only a small fraction of all the salts embedded deep within the wall. Therefore, imagine making a bowl of salt water and leaving it in warm weather for a week. As the water evaporates, a white layer of salt forms on the bowl&#8217;s surface. Now, if you wipe that layer with a cloth, the bottom of the bowl still contains salt. Accordingly, when you moisten the bowl again, the salt returns to the surface.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Exactly the same thing happens to your wall. The salts are trapped deep inside the brick, stone, or mortar. Consequently, you are only cleaning the surface appearance. However, the root of the salts remains deep within the wall. The first time it rains or moisture rises from the ground into the wall, that same water redissolves the salts and brings them back to the surface.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><span class=\"\">Here is the bitter part of the story.<\/span><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">Sometimes washing efflorescence with water not only fails to solve the problem but actually makes it worse. How? The water you use for washing enters the pores of the wall. This fresh water also dissolves the deeper salts. As a result, when this water evaporates, more salt deposits on the surface than before. In other words, you are inadvertently nurturing the efflorescence with your own hands.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Now you understand why, on some buildings, the efflorescence becomes more pronounced after every rainfall. Rainwater constantly draws fresh salt out from within the wall and deposits it on the surface. Therefore, this cycle never stops as long as a source of salt remains in the wall \u2014 unless you cut off the source of moisture.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Accordingly, in the next section, we will discuss what types of efflorescence exist, which ones are dangerous, and which ones only spoil the appearance.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5f33db3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5f33db3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b01bf49\" data-id=\"b01bf49\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-19fd63c elementor-widget elementor-widget-image\" data-id=\"19fd63c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"522\" height=\"411\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195749.png\" class=\"attachment-large size-large wp-image-10485\" alt=\"\u0634\u0648\u0631\u0647\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195749.png 522w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195749-300x236.png 300w\" sizes=\"(max-width: 522px) 100vw, 522px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1219090 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1219090\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6c33371\" data-id=\"6c33371\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3e75c88 elementor-widget elementor-widget-heading\" data-id=\"3e75c88\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">types of building efflorescence. Accordingly, which type is only superficial and which one is damaging?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b73bfe3 elementor-widget elementor-widget-text-editor\" data-id=\"b73bfe3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Many people think that every white stain on a facade is exactly the same. However, they are mistaken. In fact, efflorescence has two completely different types. One type only spoils the appearance of the building but does not harm the materials themselves. The other type acts like a silent cancer, destroying the texture of the brick and stone from within. Therefore, let&#8217;s distinguish between these two.<\/span><\/strong><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First type: surface or temporary efflorescence<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">This is the type of efflorescence you see on newly constructed buildings. For example, only a few months after construction is completed, white stains appear. The source of these salts is usually the fresh mortar or the construction water itself. Specifically, when fresh cement reacts with water, it releases a large amount of calcium hydroxide. This compound then combines with carbon dioxide in the air and forms a white, powdery layer on the surface.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">The good news is that this type of efflorescence usually disappears on its own over time. After a year or two, rain and weather factors wash it away, and it does not return. Therefore, all you can do is be patient. Alternatively, if you want to get rid of it sooner, you can clean it with a soft brush and ordinary water. However, remember that it may return a few times before gradually fading away.<\/span><\/p><h5 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second type: destructive or chronic efflorescence<\/span><\/strong><\/h5><p class=\"ds-markdown-paragraph\"><span class=\"\">Now, this is where the situation differs. This type of efflorescence appears months or even years after the building is constructed. Unlike the first type, which is powdery and loose, this efflorescence sits hard and firmly on the surface. Sometimes it becomes so thick that it looks like a white layer of plaster on the brick and stone.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Where does this efflorescence come from? Generally, it has three sources. The first is continuous moisture from the ground, which brings soil salts into the wall. second is the use of salty water in mixing mortar or grout, which reveals itself years later. The third is the presence of sulfate salts \u2014 such as sodium sulfate and magnesium sulfate \u2014 within the brick itself or the region&#8217;s clay soil.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">What is the danger of this type of efflorescence? Specifically, when sulfate salts crystallize inside the pores of brick and stone, their volume increases several times over. This expansion acts like a wedge, cracking the pore walls from within. Consequently, over time, the bricks become powdery, lose their surface, and forfeit their strength. Natural stones also suffer from erosion and separate layer by layer.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Distinguishing between these two types of efflorescence is very important. For example, if the efflorescence is powdery and loose and wipes off easily with a cloth, it is likely the first type and not particularly dangerous. On the other hand, if the efflorescence is hard and does not come off easily even with a scraper, or if the brick surface underneath is powdery and has lost its integrity, then you are dealing with the second type. Accordingly, you must take the matter more seriously.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Now, let&#8217;s move on to the next section: how to prevent efflorescence before it happens.<\/span><\/strong><\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8ac3a3c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8ac3a3c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6490b2f\" data-id=\"6490b2f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-508d264 elementor-widget elementor-widget-image\" data-id=\"508d264\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"546\" height=\"411\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195804.png\" class=\"attachment-large size-large wp-image-10489\" alt=\"\u0634\u0648\u0631\u0647\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195804.png 546w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195804-300x226.png 300w\" sizes=\"(max-width: 546px) 100vw, 546px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3ec4e9e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3ec4e9e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5daed60\" data-id=\"5daed60\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0126844 elementor-widget elementor-widget-heading\" data-id=\"0126844\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">how to prevent facade efflorescence? Accordingly, here are six simple and practical solutions.<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5e92de elementor-widget elementor-widget-text-editor\" data-id=\"b5e92de\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Prevention is always cheaper and easier than cure. The same is true for efflorescence. Therefore, if you do these few simple things right now, you will save yourself a lot of trouble later.<\/span><\/strong><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">First, control the water you use.<\/span><\/strong><span class=\"\">\u00a0<\/span><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">Salty water or water with high mineral content adds salt to the building. Accordingly, use municipal tap water.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Second, buy low-salt materials.<\/span><\/strong><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">\u00a0Some bricks contain salty clay. Therefore, before purchasing, soak a sample in water and let it dry. If a white stain appears, that material is efflorescence-prone.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Third, do not make the mortar too wet (i.e., sloppy or watery).<\/span><\/strong><span class=\"\">\u00a0<\/span><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">Too much water means loose mortar and more pores. More pores mean an easier path for salt to move. Also, do not forget to use anti-efflorescence <span style=\"text-decoration: underline;\"><span style=\"color: #0000ff; text-decoration: underline;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"https:\/\/bidak-co.com\/en\/additive\/\">additives<\/a><\/span><\/span>.<\/span><\/p><p class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fourth, install the damp-proof course properly.<\/span><\/strong><span class=\"\">\u00a0Rising ground moisture is the biggest killer of walls. For example, if the foundation damp-proofing is not done correctly, water rises like a wick, and you will never stop the efflorescence.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Fifth, make the facade water-repellent.<\/span><\/strong><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">Water-repellent and nano materials create an invisible layer on the surface. As a result, instead of penetrating, rainwater rolls off and falls down. Without water, there is no efflorescence.<\/span><\/p><h6 class=\"ds-markdown-paragraph\"><strong><span class=\"\">Sixth, do not forget ventilation.<\/span><\/strong><span class=\"\">\u00a0<\/span><\/h6><p class=\"ds-markdown-paragraph\"><span class=\"\">The wall must be able to breathe. For instance, do not seal the back of closets and cabinets where moisture can get trapped.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">These measures do not cost much. However, if they are ignored, you will have to pay a hefty price for repairs later on.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8950624 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8950624\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a584e73\" data-id=\"a584e73\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4eb38d4 elementor-widget elementor-widget-image\" data-id=\"4eb38d4\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"537\" height=\"408\" src=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195813.png\" class=\"attachment-large size-large wp-image-10498\" alt=\"\u0634\u0648\u0631\u0647\" srcset=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195813.png 537w, https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195813-300x228.png 300w\" sizes=\"(max-width: 537px) 100vw, 537px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-64000b9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"64000b9\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ad807d2\" data-id=\"ad807d2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4520fdf elementor-widget elementor-widget-heading\" data-id=\"4520fdf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Conclusion \u2014 Accordingly, stop the moisture, stop the salt, and you will stop the stains<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cd4c58 elementor-widget elementor-widget-text-editor\" data-id=\"5cd4c58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\"><span class=\"\">Conclusion \u2014 Efflorescence consists of white stains that form on brick and stone when salt, water, and evaporation forces come together at the same time. Therefore, if the efflorescence is surface-level and temporary, it only spoils the appearance and gradually disappears on its own. However, if the efflorescence is chronic and deep-seated, it destroys the texture of the materials from within.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">Accordingly, prevention is always better than cure. Clean water, low-salt materials, proper damp-proofing, and making the facade water-repellent will save you from this trouble. Furthermore, if efflorescence has already appeared, identify its type and act accordingly. For chronic efflorescence, cutting off the source of moisture is absolutely necessary.<\/span><\/p><p class=\"ds-markdown-paragraph\"><span class=\"\">In conclusion, the cost of preventing efflorescence is always lower than the cost of repair and rework.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>where do white stains on the facade come from? Accordingly, a complete review of the causes of brick and stone efflorescence You have probably experienced this before.\u00a0For example, you look at a newly constructed building with a beautiful brick or natural stone facade. A few months later, you pass by it again. Suddenly, white, powdery [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":10473,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[206],"tags":[],"class_list":["post-10639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-206"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.6 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Efflorescence on buildings - Bidak Chemical Industries<\/title>\n<meta name=\"description\" content=\"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Efflorescence on buildings - Bidak Chemical Industries\" \/>\n<meta property=\"og:description\" content=\"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Bidak Chemical Industries\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-12T16:26:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-15T15:14:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png\" \/>\n\t<meta property=\"og:image:width\" content=\"768\" \/>\n\t<meta property=\"og:image:height\" content=\"426\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\"},\"author\":{\"name\":\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\",\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/person\/d0aab86887d28d4fbeb0a3949f39e571\"},\"headline\":\"What causes efflorescence on building facades? Accordingly, here is a complete guide to removing efflorescence from brick and stone\",\"datePublished\":\"2026-06-12T16:26:03+00:00\",\"dateModified\":\"2026-06-15T15:14:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\"},\"wordCount\":2300,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/bidak-co.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png\",\"articleSection\":[\"\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0646\u0634\u062f\u0647\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\",\"url\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\",\"name\":\"Efflorescence on buildings - Bidak Chemical Industries\",\"isPartOf\":{\"@id\":\"https:\/\/bidak-co.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png\",\"datePublished\":\"2026-06-12T16:26:03+00:00\",\"dateModified\":\"2026-06-15T15:14:26+00:00\",\"description\":\"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.\",\"breadcrumb\":{\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/bidak-co.com\/en\/efflorescence-2\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage\",\"url\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png\",\"contentUrl\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png\",\"width\":768,\"height\":426,\"caption\":\"\u0634\u0648\u0631\u0647\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/bidak-co.com\/en\/efflorescence-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u062e\u0627\u0646\u0647\",\"item\":\"https:\/\/bidak-co.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What causes efflorescence on building facades? Accordingly, here is a complete guide to removing efflorescence from brick and stone\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/bidak-co.com\/#website\",\"url\":\"https:\/\/bidak-co.com\/\",\"name\":\"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9\",\"description\":\"Manufacturer of building chemical products\",\"publisher\":{\"@id\":\"https:\/\/bidak-co.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/bidak-co.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/bidak-co.com\/#organization\",\"name\":\"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9\",\"url\":\"https:\/\/bidak-co.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2024\/02\/Picture1.png\",\"contentUrl\":\"https:\/\/bidak-co.com\/wp-content\/uploads\/2024\/02\/Picture1.png\",\"width\":273,\"height\":272,\"caption\":\"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9\"},\"image\":{\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/person\/d0aab86887d28d4fbeb0a3949f39e571\",\"name\":\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/bidak-co.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/c4beec237c10fe0481047ab2751142dae927979b461833663a2cfa9f8a2f77d8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/c4beec237c10fe0481047ab2751142dae927979b461833663a2cfa9f8a2f77d8?s=96&d=mm&r=g\",\"caption\":\"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a\"},\"url\":\"https:\/\/bidak-co.com\/en\/author\/radvin\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Efflorescence on buildings - Bidak Chemical Industries","description":"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/bidak-co.com\/en\/efflorescence-2\/","og_locale":"en_US","og_type":"article","og_title":"Efflorescence on buildings - Bidak Chemical Industries","og_description":"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.","og_url":"https:\/\/bidak-co.com\/en\/efflorescence-2\/","og_site_name":"Bidak Chemical Industries","article_published_time":"2026-06-12T16:26:03+00:00","article_modified_time":"2026-06-15T15:14:26+00:00","og_image":[{"width":768,"height":426,"url":"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png","type":"image\/png"}],"author":"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a","twitter_card":"summary_large_image","twitter_misc":{"Written by":"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#article","isPartOf":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/"},"author":{"name":"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a","@id":"https:\/\/bidak-co.com\/#\/schema\/person\/d0aab86887d28d4fbeb0a3949f39e571"},"headline":"What causes efflorescence on building facades? Accordingly, here is a complete guide to removing efflorescence from brick and stone","datePublished":"2026-06-12T16:26:03+00:00","dateModified":"2026-06-15T15:14:26+00:00","mainEntityOfPage":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/"},"wordCount":2300,"commentCount":0,"publisher":{"@id":"https:\/\/bidak-co.com\/#organization"},"image":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage"},"thumbnailUrl":"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png","articleSection":["\u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0646\u0634\u062f\u0647"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/bidak-co.com\/en\/efflorescence-2\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/","url":"https:\/\/bidak-co.com\/en\/efflorescence-2\/","name":"Efflorescence on buildings - Bidak Chemical Industries","isPartOf":{"@id":"https:\/\/bidak-co.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage"},"image":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage"},"thumbnailUrl":"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png","datePublished":"2026-06-12T16:26:03+00:00","dateModified":"2026-06-15T15:14:26+00:00","description":"Efflorescence: causes of white stains on brick and stone, risks, and best prevention and removal methods.","breadcrumb":{"@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/bidak-co.com\/en\/efflorescence-2\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#primaryimage","url":"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png","contentUrl":"https:\/\/bidak-co.com\/wp-content\/uploads\/2026\/06\/Screenshot-2026-06-12-195726.png","width":768,"height":426,"caption":"\u0634\u0648\u0631\u0647"},{"@type":"BreadcrumbList","@id":"https:\/\/bidak-co.com\/en\/efflorescence-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u062e\u0627\u0646\u0647","item":"https:\/\/bidak-co.com\/en\/"},{"@type":"ListItem","position":2,"name":"What causes efflorescence on building facades? Accordingly, here is a complete guide to removing efflorescence from brick and stone"}]},{"@type":"WebSite","@id":"https:\/\/bidak-co.com\/#website","url":"https:\/\/bidak-co.com\/","name":"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9","description":"Manufacturer of building chemical products","publisher":{"@id":"https:\/\/bidak-co.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/bidak-co.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/bidak-co.com\/#organization","name":"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9","url":"https:\/\/bidak-co.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/bidak-co.com\/#\/schema\/logo\/image\/","url":"https:\/\/bidak-co.com\/wp-content\/uploads\/2024\/02\/Picture1.png","contentUrl":"https:\/\/bidak-co.com\/wp-content\/uploads\/2024\/02\/Picture1.png","width":273,"height":272,"caption":"\u0635\u0646\u0627\u06cc\u0639 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u06cc\u062f\u06a9"},"image":{"@id":"https:\/\/bidak-co.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/bidak-co.com\/#\/schema\/person\/d0aab86887d28d4fbeb0a3949f39e571","name":"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/bidak-co.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c4beec237c10fe0481047ab2751142dae927979b461833663a2cfa9f8a2f77d8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c4beec237c10fe0481047ab2751142dae927979b461833663a2cfa9f8a2f77d8?s=96&d=mm&r=g","caption":"\u0631\u0627\u062f\u0648\u06cc\u0646 \u0628\u06cc\u0627\u062a"},"url":"https:\/\/bidak-co.com\/en\/author\/radvin\/"}]}},"_links":{"self":[{"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/posts\/10639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/comments?post=10639"}],"version-history":[{"count":34,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/posts\/10639\/revisions"}],"predecessor-version":[{"id":10675,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/posts\/10639\/revisions\/10675"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/media\/10473"}],"wp:attachment":[{"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/media?parent=10639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/categories?post=10639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bidak-co.com\/en\/wp-json\/wp\/v2\/tags?post=10639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}