medium molecular weight polyisobutylene

Properties Mid MW PIB is a kind of transparent, innoxious semi-solid. It is a colorless to light yellow, it is odorless or has a slight, characteristic odor, and tasteless. It is stable with oxygen, ozone, acid, alkali, ultraviolet radiation, etc. Doesnt dissolve in water, but dissolves easily in gasoline and benzene. Applications 1. Sealant, Mid MW PIB improves the sealants flexibility and penetrability. It works very well as a sealant in double glassing. It inhibits water gas as well as the insulation gas, Argon, to pass the sealant of the double glassing. 2. Rubber, Mid MW PIB mixed with natural rubber and synthetic rubber ensures higher workability, addition of adhesion, and prevention of aging or cracking, improvement in resistance to water, electric insulation, and resistance to ozone at normal and high temperatures. 3. Paraffin, Mid MW PIB mixed with paraffin can increase anti-draught ability and brittleness of paraffin. It especially improves the plasticity and anti-acid ability of frozen food packaging. 4. Print Ink, Mid MW PIB can be used as a thickener and a dispersant in polyethylene rotogravure print ink and add viscidity to print ink, prevent drying and splitting. 5. Lubricate Grease, adding Mid MW PIB to lubricate grease can improve the products' viscidity and anti pressure ability. 6. Mid MW PIB also changes the characters of macromolecule material, draught damp grease, etc. Storage: The products can be stored in the warehouse with cool, ventilation, dry, and clean conditions for two years, please keep them away from toxic goods. Packing and Transportation Non-hazardous chemicals, medium molecular weight polyisobutylene in 20kg carton with anti-adhesive paper or 45.4kg paper barrel. We are offering supply polyisobutylene with the viscosity average molecular weight from 30000 to 70000, capable to meet various demands of customers.