Additol CPK 1-Hydroxy-cyclohexylphenyl-ketone 947-19-3 Cytec Surface Specialties North America South and Central America Photoinitiator Acrylic/Acrylate Resins Polyester >> Unsaturated Vinyl Architectural / Decorative >> Flooring Metal Pigment concentrates Wood & Furniture Coatings Plastic coating INKS >> Varnishes / Over print varnish Additol CPK is 1-hydroxy-cyclohexylphenyl-ketone. Additol CPK is a radical photoinitiator that can be used alone or in cmbination with other photoinitiators. It is used in formulations containing unsaturated materials such as acrylates, methacrylates, vinyls and unsaturated polyesters. With exposure to UV light, Additol CPK undergoes a photochemical reaction that generates radicals. These radicals will initiate polymerisation through the unsaturated groups present in the system. Additol CPK is specially used for coatings requiring low yellowing. PERFORMANCE HIGHLIGHTS Additol CPK is characterised by: Good solubility UV curable formulated products containing it are characterised by: Good surface and through cure Low yellowing on cure and with exterior exposure The final properties of UV cured products also depend on the selection of other components such as oligomers, reactive diluents and additives. SUGGESTED APPLICATIONS: It is typically used at levels of 1-5% by weight based on the reactive components of the formulation. Applications include: Wood topcoats Hard-coats for plastics Overprint varnishes Paper upgrading Vinyl floorings Metal coatings Exterior applications General coating applications where low yellowing is critical Inks and pigmented coatings(in combination with other photoinitiators) 1-Hydroxy-cyclohexylphenyl-ketone. Exhibits good solubility, good surface and through cure and low yellowing. Used in wood topcoats, hard-coats for plastics and overprint varnishes.