BYK-066N defoamer is a silicone-based defoamer suitable for solvent-free and solvent-based coatings, printing inks, and room-temperature curing plastic systems based on epoxy and polyurethane resins.
BYK-066N defoamer is applicable to various solvent-based systems, offering a good balance of defoaming performance and compatibility.
Product Name: BYK-066N
Chemical Composition: Defoaming polysiloxane solution
Special Notes: This additive contains fluorine-modified silicone.
Solvent: Diisobutyl ketone
Non-volatile content of BYK-066N additive: 0.7%

BYK-066N defoamer is suitable for binders such as chlorinated rubber, epoxy, two-component polyurethane systems, alkyd/melamine, alkyd, and self-crosslinking acrylates.
Product Features and Benefits of BYK-066N Defoamer: BYK-066N is a highly efficient defoamer for solvent-based, solvent-free coating systems, and printing inks, achieving excellent defoaming effects with minimal incompatibility.
Application Areas of BYK-066N Defoamer: Coatings and printing ink industries. Recommended uses include architectural coatings, industrial coatings, can coatings, wood and furniture coatings, printing inks, automotive coatings, protective coating systems, adhesives, and sealants.
BYK-066N additive is used in room-temperature curing systems to reduce foam generated during the production and processing of epoxy and polyurethane systems.
The recommended dosage of BYK-066N defoamer is 0.1-0.7% based on the total formulation. For optimal performance, the defoamer should be added to the grinding material before grinding. If added at a later stage, sufficient shear force must be applied to ensure good dispersion of the defoamer and prevent cratering.