Hylomar Aero Grade is a non-curing and hardening gasket compound based on polyester specially designed by the aviation industry. Hylomar Aero Grade is a sealed jet turbine engine developed jointly with Rolls Royce's aviation department. The operating temperature of Hylomar Aero Grade is --50°Cto +250°C.

Hylomar Aero Grade resists the combustion products of air, turbine and piston engines; water, water glycol and methanol mixtures; double ester synthetic lubricants; gasoline and kerosene (kerosene and aviation heavy kerosene) and carbon as refrigerants Fluorine compounds. This is a non-toxic product for bonding noodles. Under severe temperatures, the traces of volatiles will not pollute copper or silver. Hylomar Aero Grade is suitable for sealing and thread locking of the joint surface of switches and mechanical devices. It is also suitable for gasket dressings that combine metal and metal surfaces.