Expanded ptfe gasket materials seal is to avoid the interior material leakage in mechanical equipment and external pollutants to the internal parts.  They will are widely used in areas and are indispensable.  The overall performance of seals directly influences the performance of mechanical equipment.  Credited to the special working setting, the aerospace field has larger performance requirements for seals.  Aeronautical seals are high- finish line seals with good technical obstacles.  Because of the special working environment, the aerospace field seal has large requirements for materials.  For case in point , oil tube seals need to consider whether the material may resist fuel corrosion, as very well as its high temperature, large pressure, vibration, service life and also other characteristics.  Aerospace seals are primarily made from rubber as raw components, such as fluorine rubber, perfluorine rubber, silicone rubber, fluorine silicon rubber, hydrogenated nitrile butadiene plastic, ethylene propylene ternary rubber and so on .

Expanded ptfe materials( Expanded ptfe Sheet, eptfe sheet) is usually also widely used, as well as the percentage is increasing due to the low density and good closing properties.