Epoxy resin adhesive harmful substances are aromatic amines, ethylenediamine, dimethylpropylamine, maleic anhydride, dodecenyl succinic anhydride and other curing agent; Phosphate ester, DBP, DOP and other plasticizers; 501,690, butadiene diepoxide, epoxidized styrene, vinylcyclohexene diepoxide (YJ-132), coal tar and other diluents; Quartz powder, asbestos powder, chromium oxide, zinc chromate, beryllium oxide and other fillers. 690 thinner has a strong allergy to skin poisoning. Butadiene diepoxy is the most toxic. Vinylcyclohexene double epoxy on the skin irritation, but also to produce sarcoma in rats. Coal tar on the environment and the human body has a greater harm.