BYK-3764 is a solvent-free silicone surface additive that can be used in aqueous, solvent-borne and solvent-free systems. BYK-3764 increases surface slip and greatly reduces surface tension. It displays high effectiveness at low dosage and only stabilizes foam very slightly. BYK-3764 provides excellent substrate wetting and a good anti-cratering effect. Fat edges and matting are avoided. BYK-3764 is widely compatible with different systems, can be overcoated easily and does not tend to effloresce. It is suitable for use in applications where surface slip and scratch resistance is important. BYK-3764 causes a moderate to high reduction in surface tension, ensuring excellent substrate wetting which is crucial in applications involving surface coating and treatment.