Crylcoat 1644-0 Carboxylated polyester resin Cytec Surface Specialties North America South and Central America Polyester Coatings >> Powder Coatings Powder coating Crylcoatâ„¢ 1644-0 is a carboxylated polyester resin designed for 60/40 hybrid powders to be cured at 160° C. Coatings based on Crylcoatâ„¢ 1644-0 combine good flow and high gloss. Carboxylated polyester resin. Exhibits excellent flow with very good gloss. Used for manufacture of hybrid powder coatings.