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A breakthrough in both heat and chemical resistance, Thermiculite® High Temp gasket materials are rated for temperatures up to 1000ºC and have passed the API 607 fire test.

Thermiculite® sealing materials withstand high temperatures in critical service, corrosive environments and are free from oxidation.  

Due to our unique formulation, we are able to offer Thermiculite® as a sheet material, as a filler for spiral wound gaskets, as a facing for kammprofiles and also in many of our other product lines.  

We have also developed a range of valve stem packings, which utilises Thermiculite® technology.

Thermiculite® is suitable for replacing aramid, glass, and carbon fibre; PTFE and graphite gaskets in a number of industrial applications.

  • Thermiculite® 715 Coreless Sheet

    High temperature coreless sheet material.  Replacement for compressed fibre sheet material and tanged graphite sheet. Thermiculite® 715 is available in a standard sheet size of 2m x 1.5m range of 0.8 through 3.2 mm. Other sheet sizes and thickness may be available on request.

    • Max Temperature: 454°C (850°F)
    • Max Pressure: 2030 psig (290 bar) (Class 150–300)
    • ASME m: 3.2
    • ASME y: 4200 psi (29 MPa)
    • Fire safe API 607
  • Thermiculite® 815 Metal Reinforced

    High temperature sheet reinforced with a 0.004˝, 316L stainless steel tanged core. Provides total freedom from oxidation. Chemical compatibility exceeds graphite. Fire safe with proven global track record.

    • Max Temperature: 982°C (1800°F)
    • Max Pressure: 2900 psig (200 bar) (Class 150–300)
    • ASME m: 2.0
    • ASME y: 2500 psi (17 MPa)
  • Thermiculite® 835 Spiral Wound Gasket

    • High temperature filler material for spiral wound gaskets
    • Temperatures up to 982ºC / 1800ºF
    • Class 150 to 2500
  • Thermiculite® 845 Flexpro™ Kammprofile

    • High temperature facing material for kammprofile gaskets
    • Temperatures up to 982ºC/1800ºF
    • Class 150 to 2500
  • Thermiculite® 866/866LS Solid Oxide Fuel Cells

    Thermiculite® 866 and 866LS has been exclusively developed for use in solid oxide fuel cells (SOFC)  where the primary sealing material requirements are low stress sealing, electrical isolation, non-contaminating and complex gasket geometry.
    For further information on SOFC sealing materials visit www.flexitallicsofc.com

    • High temperature sealing performance in excess of 1000°C
    • Polymer Free – Excellent stress retention
    • Low Stress Sealing - Load compromised connections
  • THERMICULITE® 894 PACKING

    We have developed a range of Valve stem packings which use Thermiculite® technology, for use with high temperatures/critical service.

    Visit our Packings page for more information.

  • Thermiculite® 896 Laminated Sheet

    High temperature sealing material based on a blend of thermally and chemically exfoliated vermiculite bonded to a flat 316 stainless steel reinforcing core. It offers outstanding levels of gas tightness when tested in accordance with German clean air regulations; TA Luft VDI 2440.

    • High temperature sealing performance in excess of 1000°C
    • Full vacuum to 150 bar
    • Low emission seal – TA Luft compliant
  • Thermiculite® High Temperature Material – Invincible against Heat.
  • Change™ Heat Exchanger Gasket – Our best gasket yet!
  • SABIC enhances workforce skills with The Academy Of Joint Integrity
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