氟橡胶A-205CT

Chemours Viton® A-205CT Fluoroelastomer (FKM)
Material Notes:  Bisphenol curative-containing precompound. Improved rheology/processing version of A-201C, containing Viton ' tracer '

Polymer Fluorine Content: 66%.

Applications: Injection-transfer molding O-rings, gaskets; extruded shapes.

Viton Type A Information: Comprised of vinylidene fluoride (VF2) and hexafluoroproylene (HFP). Lowest fluorine content of Viton standard grades leads to lowest chemical resistance but best low temperature flexibility.

Physical Properties Metric English Comments
Density  1.81 g/cc 0.0654 lb/in³ 
Mooney Viscosity  20
@Temperature 121 °C 20
@Temperature 250 °F Nominal Viscosity, ML 1+10
 
Mechanical Properties Metric English Comments
Compression Set  16 %
@Temperature 200 °C 16 %
@Temperature 392 °F 70 hours
 
Thermal Properties Metric English Comments
Maximum Service Temperature, Air  204 °C 399 °F Continuous use
  >= 260 °C >= 500 °F Intermittent use
Minimum Service Temperature, Air  -23.0 - -18.0 °C -9.40 - -0.400 °F Viton is generally useful down to -18 to -23°C