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Automotive and industrial gaskets


Rockseal fibres are specially developed for the gasket industry where fibre length and a high fibre index are very important. They have a strictly controlled chemical composition and are heat-resistant up to 1000º C, making them suitable for many gasket applications.

Rockseal performance at elevated temperatures easily surpasses other materials such as cellulose, slag, glass and aramid. No ignition loss/no oxidation means a low porosity of the gasket resulting in improved durability and long term sealing properties.

With their small diameter, they can also be used in areas where glass fibres are not suitable due to their size. The fibre length and diameter distribution of Rockseal fibres contribute to an improved compression set and creep resistance for the rubber based compounds used in a gasket.