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After the real stone paint coating is dried, it is prone to whitening and rain marks, especially in the early drying period (<24 h).
In rainy weather, if soaked in water for a long time, the coating will become soft and white, which will seriously affect The beauty and strength of the product.
There are many specific reasons, specifically: the performance and dosage of the emulsion itself, because the emulsion is a film-forming substance that directly determines the performance of the real stone paint, including strength, water resistance, weather resistance, and so on.
Additive performance and formulation issues, the coating uses a large number of hydrophilic additives, the performance and dosage of these raw materials have a great impact on the performance of the real stone paint, construction problems, such as construction thickness, construction environment, construction quality, etc.
Reason 1: Poor water resistance caused by emulsion quality and dosage
1.In order to increase the stability of the emulsion , the emulsion of low quality or low price often adds excessive surfactants.
These surfactants will greatly reduce the water resistance of the emulsion itself.
Solution: Choose high-quality emulsion film-forming materials to improve the water resistance of real stone from the source.
2.
The amount of emulsion is too low.High-quality emulsions are more expensive.
In order to save costs, manufacturers only add a small amount of emulsion.
The water absorption rate of the paint film is relatively large, and the bonding strength is correspondingly reduced.
Solution: Increase the proportion of the emulsion, and do a lot of comparative tests on the amount of real stone paint emulsion added to ensure that a dense and complete paint film is obtained after the real stone paint is applied to prevent rainwater.
Reason two: poor water resistance of additives and formulation problems
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Reason 3: Analysis of the cause of whitening of real stone paint due to construction reasons
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At the same time, it lacks the salt-alkali sealing effect on the grassroots.
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