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Visual step by step instructions for proper bolted flange assembly.

GORE Joint Sealant is ideally suited for large or complex steel flanges and equipment to achieve an incredibly tight seal. Available on a spool, the user can easily and quickly form a gasket in place on the flange, and achieve significant savings in material, labor, and lead-time over traditional large cut gaskets. Please follow the installation instructions in this guideline.

For more than 50 years, the Sealant Technologies Group of W. L. Gore & Associates has focused on the factors that enable more reliable sealing of piping systems, vessels, pumps and valves. Our singular focus has resulted in the development of innovative and top-performing gaskets and packings. We’ve also established a comprehensive technical services program, specially designed to help customers determine the best solutions for their toughest sealing applications.

The Federal Institute for Materials Research and Testing (BAM) tests the sealing material compatibility for use in flanged connections with liquid and gaseous oxygen. Further information on the test procedure and the result can be found in the following test report. Please note that the test was conducted on the version of this product with no adhesive backing.

CAUTION: Extra care is advised to ensure that the gasket surface is free from particulate contamination that accumulates due to static charge.

GORE Joint Sealant DE has a uniform density over the whole cross section in combination with a high profile. By choosing the correct size it is possible to achieve a tight seal in many applications including those where the flange faces are badly pitted.

Guide to verify that the application meets GORE® Gasketing qualifications, and to narrow the selection of products.

Please fill in this form, so our experts can provide you with torque guidelines, product recommendations or installation guidance for your specific application.

Please note: This form cannot be filled out online. To request a recommendation for your application:

• Download the form to your computer. 
• Open the PDF form using Adobe Acrobat Reader. 
• Fill out the front of the form and click the "Submit" button on the form to email it to Gore.

GORE Gasketing products are comprised of expanded polytetrafluoroethylene (ePTFE), an inert fluoropolymer material. Some of these products may be supplied adhesive backed or screen printed. 

See how GORE Gaskets resist creep relaxation compared to standard gaskets.

Learn more about Gore expanded PTFE.