Лако-красочные материалы — производство

Higher-functional resins, such as phenol or kresol novolaks, are used to increase the crosslinking density. Higher-functional epoxy resins may also be incorporated, such as tetra-functional N, N’-tetraglycidyl-4,4′-diaminodiphenylmethane. The crosslink­ing rate may also be increased by the addition of higher-functional hardener — components such as tetraethylene pentamine.