German technical background VOK-A525 Defoamer For potting compound, sealant and adhesive replaces BYK-A525

German technical background VOK ®- DF A525 Defoamer/defoamer for potting compound, sealant and adhesive (polyurethane and epoxy systems). Containing organic silicon.

Product Information

Chemical composition

Polyether modified methyl siloxane copolymer solution

Typical Physicochemical Data

The data given in this data page are only typical values, not technical indicators of the product.

Density (20 ° C): 0.86 g/ml

Solvent: petroleum solvent oil/propylene glycol methyl ether acetate 9/1

Flash point: 38 ° C

Application field

Adhesives&Sealants

Features and advantages of the product prevent foam and bubbles formed during production and application. It shows good defoaming characteristics in mineral filling system. In addition, it can improve the wettability of quartz and glass fiber.

Recommended use

Especially recommended for polyurethane and epoxy resin systems.

Recommended dosage

0.1-0.5% of auxiliary dosage (form of supply) is based on the general formula.

The above recommended dosage is for reference, and the appropriate dosage shall be determined through a series of tests.

Adding method and processing guidance

Disperse the additive into the resin first, and then add other components.

Room temperature curing system

Product features and advantages

As defoamer/defoamer in production and application. At the same time, it can reduce the surface tension, improve the leveling and wetting, and prevent the formation of Bernard vortex. The surface tension can be reduced by reducing the polarity of the resin system.

Recommended use

Especially recommended for polyurethane and epoxy resin systems.

Recommended dosage

0.3-1% auxiliary dosage (supply form) is based on the general formula.

The above recommended dosage is for reference, and the appropriate dosage shall be determined through a series of tests.

Adding method and processing guidance

Disperse the additive into the resin first, and then add other components. It can also be added to the finished product system.