BYK 337 is a silicone surface additive that provides strong reduction of surface tension. It is a solution of a polyether-modified polydimethylsiloxane. BYK 337 allows for improved wetting and leveling of coatings. Its unique chemistry helps deliver enhanced surface properties like better adhesion and reduced cratering. The non-volatile content of BYK 337 is 15% and it has a flash point of 78°C. BYK 337 is user friendly and can be easily incorporated into various solvent-borne and water-borne systems. It is widely used to optimize the performance of coatings and helps meet the stringent requirements for surface quality and appearance in various applications.