Crylcoat 2607-1 Carboxylated polyester resin Cytec Surface Specialties North America South and Central America Polyester Coatings Crylcoat™ 2607-1 is a carboxyl functional polyester resin for use with Primid. Coatings made with Crylcoat™ 2607-1 are tribo applicable, have good outdoor durability and require lower hardener demand. Carboxylated polyester resin. Shows good outdoor durability and require lower hardener demand. Used to make coatings.