Kalrez AS-568A / AS-568 FFKM 4079 0-Ring for Yokogawa 232347

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.

•  Performance
• Temperature Range (F) 0 to 600
• Aliphatic and aromatic hydrocarbons
• Polar solvents (ketones, esters, ethers)
• Inorganic and organic acids

• Not Compatible Withs
• Fluorinated refrigerants (R11, 12, 13, 113, 114, etc.)
• Perfluorinated lubricants (PFPE)