Hylomar Aero Grade is a highly engineered, polyester-urethane based non-setting and non-hardening gasketing compound, for use in the aeronautical industry. Hylomar Aerograde was developed in conjunction with Rolls Royce - Aerospace Division for sealing joints in jet turbine engines. Hylomar Aero Grade can operate at temperatures from approximately –500 C to 2500 C (-580 F to 4820 F)
"The original non-setting gasket & jointing compound approved by Rolls-Royce and NATO."
100 Gram Tube