Why the cement-based grout get mildew and black easily?

[chris1220]

Cement-based tile grout is alkaline due to cement hydration reaction, so it has a certain amount of anti-mildew effect. However, after a long period of application, the carbon dioxide in the air and the slaked lime in the tile grout will mix, then let the tile grout become neutral. If it is in a humid environment for a long time, it will get mildew and black, which will affect the appearance of the building.

Why the cement-based grout get mildew and black easily
This is also a common phenomenon in our life.
In the market, some mold-proof cement-based joint fillers are partially added with anti-fungal agents, but the cement-based tile grout is strongly alkaline at the beginning, thus destroying the anti-fungal effect of the anti-fungal agent, so it is not that mildew-proof. If the cement-based tile grout is in a hot and humid environment for a long time, it will also cause mildew and blackening.
Of course, if the epoxy resin is used as an anticorrosive material, it will have a good anti-mold and anti-corrosion effect even in a hot and humid environment. At the same time, the epoxy resin and the curing agent undergo a curing reaction, and the cured epoxy grout has high hardness and scrub resistance, and also greatly avoid the phenomenon of powder occurred in the air.
Kastar ceramic tile sealant is a new product developed on the basis of traditional epoxy grout. It is not only waterproof and mildewproof, but rich colors, durability and other properties are also stronger than traditional epoxy grout or tile grout. Product-related tests can read the article. “Performance testing of Kastar products“.

Now, we are looking for agents of this new product all over the world. For more information about the products or related information, please contact our customer service or send us an E-mail: sales@ceramictilesealant.com.

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