Troykyd FCD 734 Silica Troy Defoamers / Anti-Foaming Agents >> Non silicone based Acrylics/ Acrylates Polyvinyl acetate emulsions & derivatives (PVAcā¦) ADHESIVE >> Water-based Troykyd FCD 734 Dispersion of hydrophobic silica Degassing Defoaming Water-based adhesives Compatibility with water reducible resins, pure acryic, styrene acrylic, polyvinyl acetate and copolymers and vinyl acetate-ethylene pressure polymers. Use level: 0.10-0.60 % Dispersion of hydrophobic silica. Used as a degassing and a defoaming agent in water-based adhesives. Offers compatibility with water reducible resins, pure acryic, styrene acrylic, polyvinyl acetate and copolymers and vinyl acetate-ethylene pressure polymers. Use level: 0.10-0.60%.