Scope of application:
Very excellent chemical resistance, acid, alkali, ketone, ester, ether,
strong oxidant and other chemicals. The highest heat resistance can be
up to 330 degrees centigrade. A sealing problem that is usually used for
extreme conditions.
Physicochemical properties: kalrez (FFKM) 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 when the compression rate is only 50%. Ordinary
perfluoroelastomers operating temperature range of -25 DEG ~+240 DEG
FFM, high temperature can reach 330 degrees, even when exposed to a
constant temperature of 316 DEG C or the like 343 degrees of
intermittent high temperature environment, FFKM production does not
occur to harden seal failure and embrittlement, FFKM direct contact in
the impregnation and erosion of flow the body still retains its
elasticity and resilience. In fact, the thermal stability of FFKM is
often more than that 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.
Temperature range: - 25 C to 240 C, resistant to high temperature up to 330 FFKM
中文版
ENGLISH