German technical background VOK-3400 Surface additives It can reduce the surface tension of water-based adhesive system replaces BYK-3400

German technical background VOK?-FL 3400 surface additive

Product information

Chemical composition

Mixture of interfacial active substances

Typical physical and chemical data

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

Active substance: 70%

Density (20 ℃): 1.08 g/ml

Solvent: water

Application field

Coating industry

Product features and advantages

The additive can effectively reduce the surface tension of the water-based coating, which is particularly helpful for the wetting and leveling of the substrate. It may slightly stabilize the foam without affecting the recoating property. This additive does not increase the surface smoothness. If it needs high surface smoothness, it is recommended to use it with polysiloxane additives such as VOK?-333。  

Recommended dosage

0.5-2% additive dosage (purchase form) is based on the total formula.

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

Addition method and processing guidance

The additive is added to the finished coating. However, it can also be used at any stage of the coating production process.  

Adhesives and sealants

Product features and advantages

VOK?-FL 3400 can reduce the surface tension of water-based adhesive system, thus improving the wettability on harsh substrates. It may slightly stabilize bubbles.

Recommended dosage

0.5-2% additive dosage (purchase form) is based on the total formula.

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

Addition method and processing guidance

The additive is added to the finished formula. However, it can also be used at any stage of the production process.  

Features and advantages of curing products and polishing agents VOK?-FL 3400 can reduce the surface tension of water-based curing products, thus improving the wetting and leveling of the substrate.

It may slightly stabilize bubbles, not affect subsequent coating, nor increase surface smoothness.

Recommended use

The additive is especially recommended for self brightening lotion (matt and high gloss), wax cleaner and semi aqueous cleaner with more than 5% plasticizer content.  

Recommended dosage

0.05-1% additive dosage (purchase form) is based on the total formula.

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

Addition method and processing guidance

The additive is added to the finished formula. However, it can also be used at any stage of the production process. Before being used in the system containing plasticizer, the additive shall be diluted to 10% nonvolatile with volatile plasticizer.