BYK-307

Printing Inks and Overprint Varnishes
Special Features and Benefits
The additive provides a strong reduction of surface tension of the system. Thus, it especially improves substrate wetting and prevents cratering. Furthermore, it increases surface slip and gloss. BYK-307 is a highly effective silicone additive for wetting critical substrates, and due to its being solvent-free, it is preferred in systems in which a solvent-free additive is requested, or where intermediate products require specific solvents.
Recommended Use
Recommended for all printing inks and overprint varnishes.
Recommended Levels
0.1-1.0% additive (as supplied) based upon total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
The additive can be incorporated during any stage of the production process, including post-addition. Dilution prior to incorporation can be helpful for easier dosing.

Special Note
Unlike so-called silicone oils, this additive is very user-friendly. Nevertheless, it should be determined in a series of tests whether foam is stabilized in certain systems. Similarly, the recoatability and cratering should be checked.

Coatings Industry
Special Features and Benefits
The additive provides a strong reduction of surface tension of the coating system, and is a highly effective silicone additive for wetting critical substrates. It prevents cratering, and increases gloss and surface slip. BYK-307 has a property profile comparable to that of BYK-306, and due to its being solvent-free, it is especially useful in systems in which a solvent-free additive is requested, or where intermediate products require specific solvents.
Recommended Use
The additive is especially recommended for all solvent-borne coatings, and can also be used in aqueous systems.
Recommended Levels
0.01-0.15% additive (as supplied) based upon total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
The additive can be incorporated during any stage of the production process, including post-addition. Dilution prior to incorporation can be helpful for easier dosing.
Special Note
Unlike so-called silicone oils, this additive is very user-friendly. Nevertheless, it should be determined in a series of tests whether foam is stabilized in certain systems. Similarly, the recoatability and cratering should be checked.

Adhesives & Sealants
Special Features and Benefits
BYK-307 is a highly effective silicone additive, and provides a strong reduction of surface tension. In this way, it improves the wetting of critical substrates.
Recommended Use
It is recommended for improving the substrate wetting in adhesive systems based on polyurethanes, epoxides, and acrylates.
Recommended Levels
0.01-0.15% additive (as supplied) based upon total formulation.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
The additive can be incorporated during any stage of the production process, including post-addition.
Special Note
Unlike so-called silicone oils, this additive is very user-friendly. Nevertheless, the effect on adhesive properties must be tested.

Polyether-modified polydimethylsiloxane