I-cresol-formaldehyde resin: i-resin ecacile enombala we-amber, ephekwe nge-cresol ne-formalin nge-catalyst esisekelo, igcinwe njengesixazululo esingu-50 % ku-cresol. Ukushisa kuyenza iqine ingaphinde incibilike; yenza i-enamel yocingo ye-polyvinyl formal iqine kakhulu.