Firstcure HCPK 1-Hydroxycyclohexyl Phenyl Ketone 947-19-3 Albemarle Photoinitiator Acrylic/Acrylate Resins Polyester >> Unsaturated Coatings >> UV / Radiation Curing Inks >> UV / Radiation-curable INKS FIRSTCURE HCPK photoinitiator is a crystalline solid compatible with unsaturated polyesters, acrylate monomers and oligomers used in UV-curable systems. It is an effective photoinitiator for UV-curable coatings, adhesives, inks and printing plates. FIRSTCURE HCPK photoinitiator offers good shelf stability, a fast cure rate and thorough curing. It is typically used in unsaturated polyester and acrylate-based systems in concentrations ranging from 1% to 4%. Photoinitiator, crystalline solid compatible with unsaturated polyesters, acrylate monomers and oligomers. Used in UV-curable coatings, adhesives, inks and printing plates. Offers good shelf stability, and fast and thorough cure of coatings.