... resistance, sunlight resistance, smelly itchy, good insulation properties; polar solvents such as alcohols, ketones, esters ... to 100 °C.Pu (polyurethane rubber) sealsExcellent mechanical properties of polyurethane rubber, wear resistance, high voltage performance ... yi3 xi1 zai4) industry, aviation, electrical, chemical, mechanical, instrumentation, metal surface treatment, medicine, food, metallurgy ...