German technical background VOK ®- DF A535 defoamer

Without organic silicon, is used for solvent and solvent-free epoxy and polyurethane systems.

Product Information

Chemical composition

Foam breaking polymer solution, without organic silicon

Typical Physicochemical Data

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

Density (20 ℃): 0.86 g/ml

Refractive index (20 ℃): 1.48

Application field

Room temperature curing plastic system

Product features and advantages

This defoamer is used to prevent foam and bubbles in the application field, production and application process of room temperature curing plastics. It is especially recommended for polyurethane flooring and epoxy resin based casting systems (polymer concrete, mineral castings). Suitable for materials in contact with food (including drinking water).

Recommended dosage

0.1-1% 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

Stir in the resin before adding other components. The additive can also be added to the finished product.

Adhesives&Sealants

Product features and advantages

VOK ®- DF A535 is a defoamer used for various solvent based and solvent-free adhesives and sealants.

Special recommendation

For systems based on polyurethane and epoxy resins. VOK ®- DF A535 may cause fog shadow in transparent system.

Recommended dosage

0.1-1% 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

Stir in the resin before adding other components.

Coating industry

Product features and advantages

VOK ®- DF A535 is particularly suitable for solvent-free systems, such as polyurethane and epoxy coatings, and for materials used in contact with food (including drinking water). Prevent bubbles and pinholes. VOK ®- DF A535 may cause fog shadow in transparent system.

Recommended use

Anticorrosive coating

Industrial coatings

Recommended dosage

0.1-1% 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

In order to obtain good defoaming effect, defoamer should be added to the abrasive.

If it is added at a later stage, a sufficiently high shear force must be applied to ensure good dispersion and thus prevent shrinkage.