O type ring for ethanol solution
Perfluoroelastomers FFPM
Advantages: (Perfluoroelastomer)
Optimum heat resistance
Excellent anti chemical properties
Low Outgassing characteristics
Excellent anti Plasma properties
Application scope:
Perfluorinated products are widely used in the semiconductor industry and information related industries, including the use of thin film process of PVC, CVD and etching process and a variety of high vacuum sealing process.
Silicon fluorine rubber
FLS
(Fluorinated Silicone Rubber) silicon fluorine rubber is fluorinated silicone rubber, its general performance has advantages of fluorine rubber and silicone rubber; the oil resistance, solvent resistance, fuel oil and high and low temperature resistance are good, the general use of temperature of -50~200.  
Advantages:
It is suitable for special purpose, such as the requirement to resist the oxidation of oxygen containing chemicals, the solvent containing aromatic hydrogen and the solvent containing chlorine.
Perfluoro ether rubber (FFKM) O type ring
Perfluoroelastomers is by TFE (backbone), PMVE (branched) and a bridge portion, it is not only like PTFE excellent high temperature resistance, chemical corrosion (corrosion resistant to more than 1600 kinds of chemicals), also has the elasticity of rubber, which at 300 DEG C compression rate is only in the following 50%. Ordinary perfluoroelastomers operating temperature range of -25 DEG ~+240 DEG Kalrez7075, high temperature can reach 327 degrees, even when exposed to a constant temperature of 316 DEG C or the like 343 degrees of intermittent high temperature environment, Kalrez production does not occur to harden seal failure and embrittlement, Kalrez in direct contact with dipping and erosion of the fluid still can maintain its elasticity and resilience. In fact, the thermal stability of Kalrez often exceeds those of the fluid itself. Perfluorinated rubber also has excellent air tightness (resistance to vacuum up to 1.33X10-7-1.33X10-8pa) and the Gao Jie net resistance and plasma, the characteristics of the application in the semiconductor industry is very extensive