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Butyl Rubber Gaskets

Butyl Rubber Gaskets
Butyl rubber gaskets are cut from synthetic material manufactured from a blend of isobutylene and a small amount of isoprene. The compound is less porous than other gasket materials and is primarily specified in demanding sealing applications involving gases and compressed air due to the elastomer's impermeability. Butyl rubber gaskets also provide excellent thermal stability and are a suitable choice for external applications due to their resistance to ageing, ultraviolet and weathering. This gasket material is not suitable for use with petrol and oils.
As standard, butyl rubber gaskets are supplied with a smooth plate finish on both sides. They are available in a range of standard flange, dovetail and picture frame options. For guidance on accurate gasket measurement, please refer to our 'How to Measure a Gasket' guide.

Key Features

  • Shore Hardness: 65° ± 5°.
  • Temperature: -40°C up to +140°C.
  • Excellent impermeability to most gasses, compressed air and moisture.
  • Offers outstanding resistance to UV and ageing.
  • Commonly used as a gasket when an air tight seal is required.
  • Smooth plate finish on both sides as standard.

Availability

Thickness (mm): 1, 1.5, 2*, 3, 4*, 5, 6, 8, 10, 12*, 15* and 20*.
Gaskets: All sizes CNC cut to almost any shape or profile required.

*Non-standard stock, may be subject to longer lead times.

Technical Specification:

Technical Data Sheet

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