Kalrez® 4079 is a black, low compression set compound for use in many dry and wet semiconductor process environments. It has excellent chemical resistance, good mechanical properties and outstanding thermal stability. Kalrez® 4079 exhibits low weight loss in reactive plasmas and has good response to temperature cycling effects. It is not recommended for use in amines. A maximum continuous service temperature of 316°C is suggested. Short excursions to higher temperatures are also possible. Ultrapure post-cleaning and packaging is optional.

O-Ring Size (AS-568) : 235
Inner Diameter (In.) : 3.110
Cross Section (In.) : 0.140
Material : FFKM Kalrez 4079
O-Ring Size Series : 200 Series