DuPont’s Kalrez 0090 has achieved the highest ‘0000’ rating in the NORSOK M-710 Rev 2 tests recently conducted in the UK by the independent Materials Engineering Research Laboratory (MERL). In testing, Kalrez 0090 exhibited resistance to rapid gas decompression (RGD), with no cracks or blisters developing on the O-ring sections throughout the test cycling.
In addition to finished O-rings, Kalrez 0090 can be supplied in the form of flat washers, discs, cords or special mouldings for all applications which require the highest ‘0000’ ratings for RGD resistance. Kalrez 0090 also offers high resistance to chemical attack from more than 1,800 chemicals and solvents, particularly sour multi-phase fluids containing H2S (as shown by the external NORSOK M-710 Rev 2 Sour Fluid ageing resistance certification provided by MERL-UK). High-temperature resistance up to 250ºC (482ºF) is maintained with high levels of elasticity and recovery, even after long term exposure. High modulus at low elongation properties also ensure extrusion resistance.
