Dehydran 1620 Mixture of specially modified alcohols and a polysiloxane adduct Cognis Defoamers / Anti-Foaming Agents ADHESIVE >> Solvent based >> Contact adhesive ADHESIVE >> Radiation Curing (UV/EB) Defoamer for adhesives and UV-curing systems. Composition Mixture of specially modified alcohols and a polysiloxane adduct. DEHYDRAN 1620 has a spontaneous defoaming effect in non-pigmented and low-pigmented aqueous coatings. It is highly compatible, does not separate and has a good long-term efficiency. The defoamer is also suitable for use in contact adhesives. Dosage 0.1 - 0.5 % Non ionic mixture of specially modified alcohols and a polysiloxane adduct. Used as defoamer in contact adhesives and UV-curing systems. Does not separate and offers a long term efficiency. Use level: 0.1 - 0.5 %.