1, Application: AS103 blend polyols use cyclopentane as blowing agent, which applies to refrigerators, freezers, and other insulation products. AS502 is a type of blend polyols, which is specially researched for rigid PUF to produce thermal insulation pipes. It is widely used in steam pipes, liquefied nature gas running pipes and other fields. AS501 is spray blend polyols, It applies to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc. AS201A blend polyols is a compound which consists of polyether polyols, surfactants, Catalysts, foaming agent and flame retardant in a special ratio. The foam has good thermal insulation property, light in weight, high compression strength and flame retardance and other advantages. It is widely used to produce sandwich plates, corrugated etc, which applies to make cold stores, cabinets, portable shelters and so on. 2, Specification: AS201A Hydroxyl value mgKOH/g, 320-400. Colour ,Transparent viscous liquid. DENSITY (g/ml AT 25�°C), 1.10-1.16. STORAGE TEMPERATURE �°C, 10-25. DYNAMIC VISCOSITY (AT 25 C.m Pa.S), 250-350. 3. Packing: 200KGS in one galvanized iron drum; 16MT one 20'GP 4.Precaution: Keep containers tightly closed so as to protect them from rays of light and moisture.