Thermiculite

Ever since inventing the spiral wound gasket nearly a century ago, Flexitallic has been at the forefront of fluid sealing innovation. In 1998, Flexitallic set new standards for sealing technology with the introduction of Thermiculite® Critical Service Series gasket material available in Tanged sheet – and later in Spiral Wound and Flexpro™ (Kammprofile) Facing styles.
800 Series 700 Series

800 Series

Exclusive to Flexitallic, this revolutionary material comprised of chemically and thermally exfoliated vermiculite, simulated the structure of exfoliated graphite, with one notable exception – it maintained integrity through a wide range of extreme temperatures.
 
815 Tanged Steel
  • High temperature sheet reinforced with a 0.004” 316 stainless steel tanged core
  • Cryogenics to 1800ºF / 982ºC
  • Available in thicknesses of 1/32”, 1/16”, and 1/8” in meter by meter (standard) and 60” x 60” sheet
  • Pressure Class 150 to 300
 
835 SWG
  • High temperature filler material for spiral wound gaskets
  • Cryogenics to 1800ºF / 982ºC
  • Pressure Class 150 to 2500
 
845 Flexpro
  • High temperature facing material for kammprofile gaskets
  • Cryogenics to 1800ºF/982ºC
  • Class 150 to 2500
 
894 Packing
  • Critical service packing made from expanded vermiculite foil and Inconel wire
  • high temperature, high pressure sealing
  • Cryogenics to 1900ºF/1050ºC
 

700 Series
New Thermiculite performance series gasket material, developed for use in more moderate temperature applications, maintains the same broad chemical resistance and freedom from oxidation that has made Thermiculite Critical Service Series such a success. This innovative and versatile material is available in Coreless Sheet and Spiral Wound styles, and is suitable for replacing aramid fibre, glass fibre, carbon fibre, PTFE and graphite in a wide array of applications.
 
715 Coreless Sheet
  • Replacement of compressed fibre sheet line, SF2400, 3300, 5000 and tanged graphite sheet
  • Cryogenics to 850ºF / 454ºC
  • Available in thicknesses of 1/32”, 1/16”, and 1/8” in cut gaskets and 60” x 60” sheet
  • Pressure Class 150 to 300
 
735 SWG
  • Filler material for spiral wound gaskets combined with either 304 or 316 alloy steel winding wire
  • Cryogenics to +1000ºF/538ºC
  • Pressure Class 150 to 2500
 
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