The first group is polyurethane prepolumer which is made from polyether resin and diisocyanate etc after polymerization ; the second group is made by mixing up cross linker , accelerator , softener , densifier , mold preventive and stuffing etc 甲組分別是以聚醚樹脂和二異氰酸脂等為原料,經聚合反應制成的含端異氰酸脂基的聚氨基甲酸脂預聚物;乙組分別由交聯劑、促進劑、增韌劑、增黏劑、防霉劑和填充劑等混合加工而成。