What are the causes of whitening of waterproof coatings?

Updated on home 2024-04-26
8 answers
  1. Anonymous users2024-02-08

    There are several reasons why the waterproof material is white:

    One: meet the bright water.

    There are many reasons for the occurrence of open water, and most cases are divided into before brushing waterproofing and after brushing waterproofing.

    The first is that there are several layers of open water: waterproof coating water, rain during the curing period, etc.;

    The second is that there is open water after waterproof construction: accidentally encountering water after brushing waterproof materials;

    Suggestion: no matter before and after construction, do not have open water, waterproof construction before the need to wet the base, but do not have open water;

    Two: Weather. Wet or cold weather causes the waterproof to dry and solidify slowly, so it is possible that the waterproof layer is not dry, and the waterproof layer is white by the water in the air.

    Suggestion: Avoid wet weather or weather with a temperature of less than 5 °.

    Three: uneven brushing.

    If the waterproof layer coating is uneven during the construction process, it may also lead to whitening of the waterproof layer, local whitening, and no leakage after the water storage test, which proves that the whitening has little impact on the waterproof layer, and does not need to be treated.

    Suggestion: The thickness of the ground waterproof layer is, and the impermeable parts such as floor drains and pipes can be painted 1-2 times.

    Four: Mix color with foundation cement.

    In the construction process of waterproof material, when the brush is relatively thin, it is easy to mix with the color of the base layer, and it will appear to be white, but in fact, it is not really white, as long as the water storage test is no problem, it does not need special treatment.

    Suggestion: The waterproof layer is not easy to brush too thick, and do not brush too thin.

  2. Anonymous users2024-02-07

    There is a whitening phenomenon in the waterproof layer.

    1.Reason: The material is not stirred evenly.

    There is water accumulation on the base surface during construction.

    2.Solution:

    Stir the ingredients thoroughly, let stand for 5 minutes, stir before use.

    During construction, the base area water is sucked dry.

  3. Anonymous users2024-02-06

    White waterproofing paint is a coating used to waterproof the surface of buildings, and is often used to protect houses, apartments, commercial buildings, factories, garages, and other places from water infiltration. There are many types of white waterproofing paints available on the market, the main ones are the following:

    Polyurethane waterproof coating: It has excellent waterproof and material pulsation performance, good durability and strong wear resistance.

    Neoprene waterproof coating: It has good waterproof performance, strong durability and good high temperature resistance.

    Silicone waterproof coating: It has excellent waterproof performance, good durability and strong wear resistance.

    Vinyl latex paint: It has good waterproof performance, good durability and easy construction.

    PVC waterproof coating: It has excellent waterproof performance, good durability and strong wear resistance.

    In addition to the above several common white waterproofing coatings, there are some other less common white waterproofing coatings, such as:

    Vinyl alcohol resin waterproof coating: it has good waterproof performance, good durability and easy construction.

    Polypenxiang sulfate waterproof coating: it has excellent waterproof performance, good durability and strong wear resistance.

    Toluene resin waterproof coating: it has good waterproof performance, good durability and convenient construction.

    Epoxy resin waterproof coating: It has excellent waterproof performance, good durability and strong wear resistance.

    Hopefully, this information will help you understand the types of white waterproofing paints. When choosing waterproof coatings, choose the right waterproof coatings according to your actual needs and the use environment of the building.

  4. Anonymous users2024-02-05

    Summary. If it is a tarpaulin, it is generally because the waterproof coating on the outside has been used for a long time, and then it will turn white, and the waterproof efficiency will be reduced.

    Hello, is it a waterproof thing?

    If it is a tarpaulin, it is generally because the waterproof coating on the outside has been used for a long time, and then it will turn white, and the waterproof efficiency will be reduced.

    After doing waterproofing, drying for a few days, a few drops of water will turn white, I don't know what the reason, I don't dare to release a large amount of water experiment.

    It's been in the sun for a long time. It will have an impact on waterproof coatings.

    No dripping water is not white, dripping water is white.

    That's the case. Generally, after you apply the waterproof coating, the particles in the waterproof coating are destroyed due to exposure to the sun, and then he will release water to change to white, and return to the original color without water.

    It may be that we have encountered open water, and we have to divide it into two situations according to the front or back of the waterproof layer of the burning tank. There is clear water at the base level, such as waterproof coating and starvation section, or it is affected by water during the maintenance period, etc. After the waterproof layer is done, there is open water, and the rotten shed may be accidentally poured water on it after applying the waterproof coating.

    Some paints are like this when exposed to water.

    Ask about custom messages].

  5. Anonymous users2024-02-04

    Summary. Stir the ingredients thoroughly, let stand for 5 minutes, stir before use.

    During construction, the base area water is sucked dry.

    How to deal with the whitening of the fabric after waterproofing.

    Stir the material thoroughly, let it stand for 5 minutes, stir it and then use it to absorb the water in the base area during construction.

    It is not uncommon for waterproof coatings to be whitened due to improper construction. Waterproof whitening can be roughly summarized into two types of mesoporosis: one is recoverable whitening, and the other is non-recoverable whitening.

    Restorable whitening is due to the fact that the waterproof coating is not completely dry, and a large amount of water vapor remains in the coating, such as the base layer has open water during construction, the environmental humidity is too large, and the waterproof water is diluted, etc., which will lead to the whitening of the waterproof layer, but this kind of whitening will gradually recover with the volatilization of water and the drying of the coating.

    Non-recoverable whitening is known to be the result of the waterproof coating in the case of low temperature, excessive humidity, poor indoor ventilation, etc., the drying speed slows down, so that the alkaline substances inside the waterproof layer migrate to the surface, and react with carbon dioxide in the air to form white precipitation, resulting in whitening of the coating, which is not easy to recover.

  6. Anonymous users2024-02-03

    Dear users, there is a certain difference in color between the white of waterproof paint and the white of latex paint. The white color of waterproofing paint is usually purer, brighter, and more durable than the white of latex paint. This is because waterproofing coatings are usually used in outdoor or humid environments, and they need to have better waterproofing, moisture resistance, durability, etc., so they will be different in formulation.

    Specifically, the white color of waterproofing coatings is usually enhanced with some special pigments and additives to enhance its weather resistance and slow waterproofing performance. The white socks of latex paint are usually made of titanium dioxide and other pigments, and are mainly used for interior wall decoration and coatings. In addition to the difference in color, waterproof paint and latex paint are also different in use.

    Waterproofing coatings often need to be repainted after drying to achieve a better waterproofing effect. Sock molds, on the other hand, usually only need to be applied once. 

  7. Anonymous users2024-02-02

    As we all know, waterproofing is an indispensable construction link in home decoration. So the question is, is it normal for waterproof to be white? What are the causes of the whitening of the waterproof layer? Next, let me give you a brief introduction.

    If it is only a slight whitish of the local comma, it is a normal phenomenon and has little impact on the quality of the waterproof layer, so it can be left untreated. Of course, if there is severe whitting and strength problems, it needs to be eradicated and re-applied.

    What are the causes of whitening of the waterproof layer?

    1.In case of clear water.

    There are many reasons for encountering open water, but they are mainly divided into two situations: before and after brushing waterproofing.

    Clause. 1. There is clear water at the grassroots level: for example: waterproof coating water, rain during the curing period, etc.

    Clause. 2. There is open water after waterproof construction: after brushing the waterproof coating, accidentally encounter water.

    Suggestion: No open water can occur before or after construction. In addition, the base layer needs to be wet before waterproofing construction, but there must be no open water.

    2.Weather. Humid, low temperature and other weather caused the waterproof layer to dry and cured slowly, so it led to the whitening of the waterproof layer.

    Recommendation: Avoid wet weather and construction when the temperature is below 5.

    3.Uneven brushing.

    If the waterproofing coating is uneven in construction, it is very likely to cause the waterproofing layer to whiten. If it is partially white, but there is no permeability after the water storage test, it means that the whitening does not have much impact on the waterproof layer, and it can not be treated. However, if there is a serious whitening or strength problem that causes a water leak, it needs to be removed and re-applied.

    Suggestion: The thickness of the ground waterproof layer is 1 to 1 mm, and it is recommended to apply 1 to 2 more times for the impermeable parts such as floor drains and pipes.

    4.Mix the color with the base cement.

    In the construction, when the paint is thin, it is easy to mix with the color of the base layer, and it will appear white, but in fact, it is not white, as long as there is no problem with the water storage test, there is no need to do special treatment.

    Recommendation: The waterproof layer is not easy to brush too thick or too thin.

    Summary: After reading the above introduction, I believe you have a further understanding of the waterproof whitening is it normal to excite the fingers. If you need to know more about it, please continue to ******, and more exciting content will be presented to you in the future.

  8. Anonymous users2024-02-01

    Summary. Dear, the exterior wall tiles are painted with transparent waterproof, and now the wall paintings are white, which is a normal phenomenon, and it can be restored to transparency after drying, so don't worry too much. However, it should be emphasized that before construction, it is necessary to ensure that the exterior wall is dry and protected from rain.

    Secondly, the transparent waterproof adhesive is film-forming waterproof, which is only suitable for general exterior wall tiles, porcelain tiles, cultural bricks, etc., and is not suitable for glazed tiles and metal surfaces. The construction temperature should be controlled in the range of 5-35, and the weather will be cooler, so remember to avoid low-temperature construction in winter.

    The exterior wall tiles are painted transparent and waterproof, and now the wall paintings are whitened how to deal with them.

    Hello dear! We're happy to help you with your questions! The waterproof layer is whitish, and you can it like this, 1

    First, check whether the waterproof is completely dry, and use a hair dryer to dry the whitening area. 2.If the whitening area is not large, not more than 5% of the whole, the impact of waterproofing and tiling effect will not be too obvious.

    3.If there is a lot of whitening, the waterproof layer should be removed and repainted.

    The exterior wall bricks are uneven and difficult to shovel, is there any other better way.

    Pro, the exterior wall tiles are painted transparent and waterproof, and now the wall paintings are white, which is a normal phenomenon, and it can be restored to transparency after touching and drying, so don't worry too much. However, it should be emphasized that before construction, it is necessary to ensure that the exterior wall is dry and protected from rain. Secondly, the transparent waterproof macro lack glue is film-forming waterproof, which is only suitable for general exterior wall tiles, porcelain tiles, cultural bricks, etc., and is not suitable for glazed tiles and metal surfaces.

    The temperature of the noisy workers should be controlled in the range of 5-35, and the weather will get cooler, so remember to avoid low-temperature construction in winter.

Related questions
11 answers2024-04-26

Solvent-based coatings: There are many types of such coatings, and the quality is good, but the cost is high, the safety is poor, and the application is not very common. >>>More

5 answers2024-04-26

At first waterproof coatings.

It is mainly used for the decoration of exterior walls and roofs. >>>More

8 answers2024-04-26

Coating construction plan: base surface (substrate) treatment: the substrate must be firm, smooth, clean, free of dust, greasy, wax, release agent, etc. and other debris substances; If there are pores, cracks and inequality defects on the base surface, it must be repaired and smoothed with cement mortar in advance, plastic strips are recommended to be pasted on the expansion joints, a layer of non-woven fabric must be added to the nodes, and nozzle grouting is recommended to be used for nozzle filling; The yin and yang corners should be wiped into an arc shape (or V-shaped); Make sure the base surface is sufficiently wet, but there is no open water; Freshly poured concrete surfaces (including plastered surfaces) should be allowed to dry and set completely before construction. >>>More

13 answers2024-04-26

The first waterproof coating is affected by many factors, such as the brand of waterproof coating, packaging specifications, product nature and type, local prices, etc., so it is recommended to go directly to the local building materials market to inquire about the comparison, and then buy it according to the actual situation.

4 answers2024-04-26

1. Film thickness inspection;

The needle puncture method should be used to puncture three points per 100 square meters, measure its height with a ruler, take its average value, and the thickness of the film should be greater than 2 mm. Colored pencils should be used to make a mark during the puncture so that it can be repaired. >>>More