
Fluorezi® 41 series (FFKM Material)
Fluorezi® 41 series | FFKM material data
HIGH TEMPERATURE RESISTANT FFKM | 41 SERIES
Equivalent to Kalrez® 6375, Isolast® J9440, Simriz® 495, Simriz® 485, Parofluor® V8787-75
| Typical Physical Properties | Method | 4175B |
| Hardness (Shore A) | ASTM D2240 | 75 |
| Color | Black/White | |
| Compression set (% 70hr @ 200 °C) | ASTM 395B | 21.8 |
| Maximum Continuous Service Temperature (°C) | 320 | |
| Maximum Service Temperature (°C) – short term | 330 |
The 41 series is a technically advanced high temperature perfluoroelastomer. It is designed to meet the challenges of higher temperature applications. Its fully fluorinated back bone structure provides a very broad chemical and thermal stability.
The 4175B compound is very suitable for use in a large number of different semiconductor process environments. Examples include rapid thermal processing, dry etch, wet etch and wet clean. It is also an excellent product for chemical sealing applications. It exhibits low weight loss in reactive plasmas and has a high tolerance to temperature fluctuations.









