Byk -038 Mixture of paraffin-based mineral oil and hydrophobic components, BYK Chemie Defoamer / Antifoaming agent >> Silicone Architectural / Decorative >> Exterior wall coatings General Industrial /Maintenance Byk® -038 is a mixture of hydrophobic components in paraffin-based mineral oil, containing silicone. Mineral oil defoamer for emulsion paints, industrial emulsions, exterior wall paints, emulsion plasters and emulsion adhesives to defoam during production and application. BYK®-038 is also suitable for gloss and semi-gloss emulsion paints and for the production of emulsions. The defoamer is stable upon storage, resistant to yellowing from ultra-violet radiation and does not influence color acceptance and color development in tinted systems. BYK®-038 is especially designed for universal use in APEO-free emulsions with a PVC from 20 to 70 %. It contains a small amount of a paint compatible silicone which enhances defoaming performance. Mixture of hydrophobic components in paraffin-based mineral oil, containing silicone. Used for emulsion paints, industrial emulsions, exterior wall paints and emulsion plasters. Offers resistance to yellowing from ultra-violet radiation.