... Easy to crystallize at low temperature hardening. Applicable to all kinds of contact with the atmosphere, the sun, smelly ... heat to 300 °C. Usually used to solve complex sealing problems of the environment, nearly a hundred times higher ... si4 fu2 yi3 xi1 zai4) industry, aviation, electrical, chemical, mechanical, instrumentation, metal surface treatment, medicine, food, metallurgy smelting, hydraulic ...