Fluorezi® 41 series | FFKM Material

High temperature resistant

Equivalent to Kalrez® 4079 & Kalrez® 1050LF, Isolast® J8325, Parafluor® V8545-75, Perlast® G75TX

Fluorezi® 41 series | FFKM material data


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.

NDS 41 FFKM properties

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