Materials covered:

  • General purpose silicone rubber
  • Silicone rubber for special applications; low flammability, high tear strength, aramid fibre reinforced, high temperature
  • Flouronated silicone Rubber
  • Acrylonitrile-butadiene and Epichlorohydrin rubbers
  • Polychloroprene rubber; general purpose and Ballistic
  • Ethylene propylene rubber
  • PVC nitrile Rubber
  • Polyurethane and aramid reinforced polyurethane rubber

Tests Covered:

  • Density ISO 2781
  • Shore hardness ISO 48
  • Tensile strength ISO 37
  • Compression set ISO 815
  • Crescent tear ISO 34-1
  • Delft tear ISO 34-2
  • Adhesion and corrosion to metals ISO 6505
  • Resistance to ozone ISO 1431-1
  • Heat aging ISO 188
  • Gehman test (cold temperature stiffness) ISO 1432
  • Low-Temperature retraction or TR test ISO 2921
  • Resistance to crystallisation ISO 3387
  • Resistance to liquids ISO1817
  • Low temperature brittleness ISO 812
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Reviews From Our Happy Clients
4ward Testing performed with a high degree of professionalism, care and attention to detail throughout.

Permasense Ltd

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Reviews From Our Happy Clients
I have no hesitation in recommending 4Ward Testing Ltd. The service, communication and response have been excellent. I am looking forward to working with them again in the near future.

Arthouse Ltd

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