Hylomar Aerograde PL32 is the “aerospace” approved version of Hylomar Universal Blue and it has been developed based on specifications by Rolls-Royce Aerospace Division for sealing joints in jet turbine engines. Hylomar Aerograde PL32 can operate at temperatures of approximately 60F to +480F. It has been tested and approved by: National Power / Powergen 15/53/181, NCB Vocab No. 13.82.0414. 0303.16423, British Rail catalog No 9/2/31138 and 31140, MOD AFS 147 and DTD 900/4586B. Aerograde also meets the BASEEFA requirements of flame proof joints.