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Physical/Mech Properties

GRI™ has local fabricating distribution partners assuring that our end user customers receive the very best value in the fluid sealing industry on time every time.

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ASTM F104, the Standard Classification System for Nonmetallic Gasket Materials, includes a line call-out encompassing ASTM test methods for evaluating the physical and mechanical properties of nonmetallic gasket materials.

Some of these ASTM tests are:

  • F 36 - Compressibility and Recovery
  • F 37 - Sealability
  • F 38 - Creep-relaxation
  • F 146 - Fluid Resistance
  • F1574 - Compressive Strength

In addition to ASTM tests, we also do testing to BSI (British Standards), DIN (German Institute for Standardization) and FSA (Fluid Sealing Association) standards. These tests include:

  • BSI - F125A - Hot Compression
  • DIN - 3535 - Gas Permeability
  • FSA - NMG-204 - High Pressure Saturated Steam Test

These tests are outlined in the test methods section.