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 –50°C to + 250°C.