Fluorezi® 48 series | FFKM Material

Explosive decompression resistant

Equivalent to Kalrez® 0090

Fluorezi® 48 series | FFKM material data


Equivalent to Kalrez® 0090

Typical Physical Properties Method 4890B
Hardness (Shore A) ASTM D2240 90
Color Black
Compression set (% 70hr @ 200 °C)  ASTM 395B -5
Maximum Continuous Service Temperature (°C) 240
Maximum Service Temperature (°C) – short term 250

The 4890B compound is an explosive decompression resistant perfluoroelastomer. It has been designed specifically to meet the challenging demands of oil and gas applications that require the chemical resistance of perfluoroelastomers together with high explosive decompression resistance. 4890B has been tested according to NORSOK M710 and passed at the highest possible rating of ‘‘0000’’. Its fully fluorinated backbone structure provides very broad chemical and thermal stability. It has a low compression set, excellent chemical resistance, good mechanical properties and outstanding thermal stability.

NDS 48 FFKM properties

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