Byk -045 Emulsion of foam destroying polysiloxanes, hydrophobic solids and emulsifying BYK Chemie Defoamer / Antifoaming agent >> Silicone water Byk® 045 is emulsion of hydrophobic solids, emulsifying agents and foam destroying polysiloxanes. Silicone defoamer for emulsion based bonding agents, stains and plasters to defoam during production and paint application. 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®-045 was specifically developed for emulsion systems with a PVC of 40-80%. Furthermore, it is very effective in non-pigmented systems (i.e., bonding agents, stains). It is easy and trouble-free to incorporate and shows no separation even in low viscosity systems. Emulsion of hydrophobic solids, emulsifying agents and foam destroying polysiloxanes. Used in paints. Offers resistance to yellowing from ultra-violet radiation.