Physicochemical Property
Fluororubber is common in market in the middle of 1950s,which is the copolymer of Ethylenefluoride and hexafluoropropylene.Its specific gravity is as high as 1.85. Depending on its molecular structure and fluorine content, the chemical resistance and low temperature resistance of fluororubber are also different. Fluorine rubber is based on its flame retardancy (self-extinguishing from fire), excellent air tightness (vacuum degree can reach 1.33*10-7~1.33*10-8pa), ozone resistance, weather resistance, good anti-aging It is known for its high resistance and wide range of chemical resistance.
Static sealing: -30°C~232°C, up to 275°C for a short time
Dynamic seal: -20℃~200℃
GLT type: -60℃~250℃
Hardness range
Shore A5o to 95 degree
Color
Color：black, brown, green, white, brown red, yellow, blue, and the color can also be specified by the customer.
Application
The sealing products made of fluorine rubber can be used for the sealing of automobile and aircraft engines for a long time at 250 ° C. It is very suitable for the sealing of engine power output and rotation. Air filter seal, fuel pump seal and inner rubber of fuel hose, etc. Viton seals are also the only ones that can be used under high vacuum conditions, and other rubbers cannot be used for sealing below 1.33*10-7pa.
Therefore,fluororubber is widely used in aerospace.Fluorine rubber can be used for inorganic acid medium sealing. .It can be used for long time operation in 67% sulfuric acid under temperature of 140°C,in concentrated hydrochloric acid under temperature of 70°C,and in 30% nitric acid under temperature of 90°C. Specially formulated fluorine rubber can also be used for king water. In semiconductor industry ,fluororubber can be used in mediums under temperature of 275°C such as silicon tetrachloride,gallium arsenide and phosphorus oxychloride.
