German technical background VOK®- DF 1640 Defoamer

VOK®- DF 1640 is a non silicon polymer defoamer suitable for waterborne coatings, inks, adhesives, paper coatings and building chemicals. Zero VOC, low dosage, good performance.

Product Information

Chemical composition

Hyperbranched Polymer Defoamer Containing Polyamide Particles

Typical Physicochemical Data

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

Density (20 ° C): 1.00 g/ml

Non volatile matter (60 minutes, 105 ° C): 62%

Solvent: water

Storage and transportation

Storage and transportation between 0 ° C and 50 ° C are sensitive to temperature. If the storage temperature is lower than or higher than the recommended temperature, please check before use, and re emulsify at room temperature if necessary.

Application field

Coating industry

Features and Benefits

VOK®- DF 1640 is a multifunctional defoamer for water-based systems. This additive is especially recommended for paint and plaster production and construction processes. The additive does not contain organic silicon and mineral oil. It is used in special water-based systems, has a spontaneous defoaming effect, and can prevent microbubbles. In coil coating, VOK®- DF 1640 can be added in or after the abrasive.

Recommended use

Architectural coatings

Coil coating

Tin coating

Recommended dosage of anti-corrosion coating

0.05 - 0.5% additive amount (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

The additive can be added at any production stage, and sufficient shear force is required.

Adhesives and Sealants

Features and advantages VOK®- DF 1640 is a highly effective defoamer suitable for common dispersion adhesives, such as acrylic acid, polyurethane and EVA dispersion. It inhibits foam during production and use. This product does not contain organic silicon and mineral oil, and is especially recommended for zero VOC systems. It shows good performance at the lowest dose, is stable under acid and alkali conditions, and can be used in the pH range of 3-12.

Recommended dosage

0.05 - 0.5% additive amount (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

The additive can be added at any production stage, and sufficient shear force is required.

Paper coating

Features and Benefits

VOK®- DF 1640 is an efficient defoamer suitable for all ordinary paper coatings. It defoamers and inhibits the formation of foam at the same time. It can be used not only in the production process of coatings but also in various coating methods, such as film press coating or sizing press coating, scraper coating and curtain coating. This product does not contain organic silicon and mineral oil, and it shows good performance at the lowest dosage. As a result of its approval for use in contact with food.

Recommended dosage

0.05 - 0.5% additive amount (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

The additive can be added at any production stage. However, in order to achieve good results, it is recommended to add it in the previous process.

Printing ink

Features and Benefits

VOK®- DF 1640 is especially suitable for water-based printing ink, varnish and water-based, radiation curing printing system. As a result of its approval for use in contact with food.

Recommended dosage

0.2 - 1.0% additive amount (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

During the adding process, ensure sufficient shear force.

Building chemicals

Features and Benefits

VOK®- 1640 is a high efficiency defoamer used in the production of lignocellulose based and naphthalenesulfonic acid based common water reducer. The additive does not contain organic silicon and mineral oil, has no hazard identification, and can replace TIBP/TBP. VOK ®- DF 1640 shows good performance even at the lowest dose.

Recommended dosage

0.1-0.3% additive amount (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

The additive can be added at any production stage, and sufficient shear force is required.