PER-DF638 是一款 semi-solid reaction product of epichlorohydrin及phenol-formaldehyde novolac. It has advantageous characteristics of 良好附着力 strength, 卓越的 heat及chemical resistance because of its multi-functional groups 于 one molecule fully cross-linked. Therefore, it has 卓越的 physical 性能指标于 addition to the basic reactivity of general Epoxy 树脂.