Features and Function Used as a bond for diamond grinding wheel, high speed heavy load resin grinding wheel and strong grinding resin grinding wheel, it has excellent heat resistance, wear resistance, good melting fluidity, good wetting and bonding properties for abrasive, convenient forming and processing, good process. As a high temperature resistant polymer and resin based high performance composite matrix resin, it is also widely used in aviation/aerospace, electrical/electronics, locomotive, automobile, precision machinery and automatic office machinery, etc. Suitable for the preparation of high (low) temperature resistant solid self-lubricating materials, precision mechanical parts, all kinds of bearings, washers, sealing rings, radar equipment, molded products and paint, adhesive and electrical insulation board, insulation tube, transformer coil insulation layer, coil holder high performance electrical insulation materials and other products.