Durlon<sup>®</sup> ETG Gaskets

Durlon® ETG Gaskets


Durlon® Extreme Temperature Gaskets (ETG) have been engineered to provide the preeminent solution to sealing gasketed joints having exposure to high temperatures, typically greater than 650°C (1,200°F) and up to 1,000°C (1,800°F). At extreme temperatures, flange assembly torque retention is the key component to maintaining a tight seal. Durlon® ETG has combined an oxidation boundary material with the excellent stability and sealing characteristics of flexible graphite in order to preserve seal integrity and to retain the initial assembly torque.


The Durlon® ETG’s engineered design principle is focused around providing oxidation protection zones around the central oxidation inhibited flexible graphite sealing component. Standard industrial grade flexible graphite typically begins to rapidly oxidize at around 650°C (1,200°F). By adding oxidation inhibitors to the graphite, the rate and amount of oxidation can be significantly reduced which can extend the seal life of the material, however, oxidation still occurs and at extreme temperatures it can be fatal to the integrity of the joint.


Available Styles:

DRI-ETG Spiral Wound As both mica and graphite offer outstanding natural chemical resistance, the Durlon® DRI-ETG is also capable of withstanding many aggressive chemicals and environments subject to elevated temperatures. The DRI-ETG can be manufactured in virtually any metal alloy combination required by the application.
Durtec®-ETG By using the ETG engineered design concept, the Durtec® gasket’s facing layers get an extreme temperature upgrade providing both temperature resistance and enhanced sealability. On both faces of the unique core design lays a central oxidation inhibited flexible graphite ring surrounded on its ID and OD with a ring of HT1000® which acts as the oxidation barrier. The entire combination of materials and core design provides unsurpassed bolt torque retention, fire safety, sealability and extreme temperature resistance to 1,000°C (1,800°F).
K40-ETG Kammprofile Durlon® K40 Kammprofile Gaskets naturally provide a tight seal with enhanced load bearing and distribution abilities but with the addition of the ETG engineered design concept similar to that used on the Durtec®-ETG, Durlon® K40-ETG gaskets can now offer those abilities at extreme temperatures up to 1,000°C (1,800°F).