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Automotive and industrial gaskets


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. 

The short 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. It is the micro reinforcement you need to withstand high pressure and high temperatures.

High fibrillated aramid fibres from Heracron® are creating a good mechanical bond in the rubber matrix keeping the fillers and short fibres together. It gives the gasket mix the indispensable cohesion and strength needed during calender processing under high pressure and temperature conditions.