There are many defoamers on the market, and the choices are very cautious and can be noted in several ways:

1. Controlled compatibility, that is, to achieve the balance between defoaming and surface effects, both defoaming and prevention of defects such as shrinkage cavities and poor leveling.

2. Defoaming according to the construction conditions and methods, such as brushing, spraying and roller coating, face different degrees of foaming, and also means different defoaming agents.

3. The balance between foam suppression and foam breaking can be reasonably matched according to different processing and construction methods.

4. Long-term defoaming performance. Many defoamers will gradually reduce their defoaming performance during storage of the paint, and the antifoaming agent content in the paint should be higher when designing the formula.

The amount of defoaming agent is 0.05% to 0.5% of the whole formulation, preferably about 0.1%. If the defoaming agent used exceeds 0.5% to have a good defoaming effect, the defoaming agent should be considered.Different resin systems are sensitive to defoamers. The type and amount of aqueous defoamer selected must be determined experimentally, depending on the system.

Sinograce Chemical produces water based additives, such as thickener, crosslinking agent, wetting agent.

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