German technical background VOK-1798 Defoamer For water and radiation curing systems replaces BYK-1798

German technical background VOK ®- DF 1798 Defoamer

Silicone based defoamer for water and radiation curing systems.

Chemical composition: foam breaking polysiloxane solution.

Typical Physicochemical Data

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

Density (20 ° C): 0.88 g/ml

Non volatile matter (10 minutes, 150 ° C): 10%

Solvent: ethylene glycol butyl ether/ethyl hexanol/petroleum solvent 6/2/1

Flash point: 53 ° C

Current status of food contact regulations

Characteristics and Advantages BYK-1798 is a defoamer with good effect, which is applicable to all water-based systems (physical drying and paint baking systems), and we also recommend it for radiation curing systems.

The recommended dosage is 0.1-0.7%. The dosage of auxiliary agent (supply form) is based on the general formula.

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

Adding method and processing guidance

In order to obtain the best performance, the defoamer should be added in the grinding stage. If the additive is used later, it is necessary to ensure that the shear force is high enough to make the additive disperse evenly to avoid shrinkage cavity.