BYK 066 N is a highly effective defoamer that reduces foam formation during manufacturing and processing. It offers optimal defoaming at very low levels of incompatible substances. BYK 066 N provides a good balance between effectiveness and compatibility. It can be used in solvent-borne and solvent-free systems for applications that require bubble-free surfaces. BYK 066 N is especially suitable for systems that require protection from environmental factors as it helps achieve a uniform appearance without defects.