BYK defoamer is a chemical additive widely used in the varnish industry. It has the function of controlling gas retention and foam generation in the coating, which can reduce bubbles and defects on the coating surface and improve the coating quality.
(Application scenario: varnish industry)
In the varnish industry, the main functions of BYK defoamer include the following aspects:
1. Removal of gas retention: The coating often contains gas dissolved in the coating, especially in solvent-based coatings. The use of BYK defoamer can help accelerate the release of gas and avoid the generation of bubbles during the drying process of the coating, thereby improving the appearance and performance of the coating.
2. Controlling foam generation: During the production, mixing and construction of the coating, a large amount of fine foam is easily generated due to the presence of coating surfactants. These foams will affect the uniformity of the coating and the quality of the coating film. The use of this defoamer can reduce surface tension, control the generation of foam, and help the foam to dissipate quickly.
3. Improve coating quality: Bubbles and foam in the coating will cause the coating surface to be rough and uneven, and may affect its physical properties and durability. By using this defoamer, these defects can be reduced and the quality and appearance of the coating can be improved.
BYK defoamer is widely used in the varnish industry to remove gas entrapment, control foam generation and improve coating quality. It is one of the important additives to improve the surface quality, uniformity and performance of coatings.
The amount of BYK defoamer added needs to be determined according to the specific coating system and construction conditions. Different types of defoamers have different effects in different systems. Therefore, when selecting and using defoamers, you should refer to the technical guidance and experimental data provided by the supplier to ensure the realization of good results.
