High Temperature Gasket Material

Teadit® GR1700 APX2 Hochdruck® sheet an excellent material choice for high temperature gaskets

Using gaskets fabricated from a proven high temperature gasket material ensures reliable sealing performance beyond the range of standard gasket materials. High temperature applications often involve open flames, combustible materials, or solids, liquids and gases at high temperatures.

To service high temperature applications, Canada Rubber Group Inc. (CRGI) is now supplying gaskets fabricated from Teadit® GR1700 high temperature gasket material. Teadit® GR1700 - SIGRAFLEX® APX2 Hochdruck® is a multilayer, high-strength gasket sealing sheet designed for high-temperature applications. The sheet is comprised of 0.020” thick layers of highly oxidation resistant SIGRAFLEX® APX2 flexible graphite and 0.002” thick inserts of 316L stainless steel foil, manufactured with SIGRAFLEX® Hochdruck® technology.

Properties of Teadit® GR1700 high temperature gasket material

Teadit® GR1700 APX2 Hochdruck® sheet is specifically designed for high temperature flat gasket applications. This sheet combines the outstanding weight loss characteristics of SIGRAFLEX® APX2 flexible graphite and reinforcing layers of metal in SIGRAFLEX® Hochdruck® technology. Gaskets made from this type of sheet perform well in critical applications due to high mechanical strength and blowout resistance, working pressure resistance up to 3600 psi (250 bar), excellent chemical resistance, very low cold or hot relaxation, and a maximum permissible gasket stress. Among its advantages, there is good conformation to sealing surfaces, excellent torque retention and high sealability. The thermal stability of SIGRAFLEX® APX2 is superior to that of standard grades of graphite foil. This is reflected by the material’s mass-loss curve, whose temperatures for any given mass-loss are about 150°C higher.

Applications for Teadit® GR1700 high temperature gasket material

Gaskets fabricated from Teadit® GR1700 sheet are commonly used in pipe flanges, equipment and pressure vessels; non-typical geometry flanges tongue/groove and heat exchanger flanges. Gaskets made from GR1700 sheet are also suitable for use in sight glass, pumps, fittings and valves, etc.

Typical physical properties

The tables below show the typical physical properties of Teadit® GR1700 APX2 Hochdruck® sheet:

CRGI fabricates gaskets from Teadit® GR1700 high temperature gasket material on the latest production equipment within our ISO 9001:2008 certified facility. If you have a high temperature application, or need guidance on high temperature gaskets and gasket materials, we can help.

For further information on gaskets made from Teadit® GR1700 sheet, please contact our sales department directly at crg@canadarubbergroup.com.