Hylomar Aerograde Ultra is a highly engineered, polyester-urethane based non-setting and nonhardening gasketing compound, for use in the aeronautical industry. Hylomar Aerograde Ultra was developed in response to requests from Rolls Royce - Aerospace Division for a chlorinated solvent free version of Hylomar Aerograde. Aerograde Ultra can operate at temperatures between –50°C and up to + 250°C. The product carries the same Rolls Royce MSRR 9055 approval as the old Aerograde product and OMAT numbers 4/46A (light version) and 4/47A (standard version).
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