Joint Sealant
Joint Sealant and Gasket Tape
Joint Sealant, the first form-in-place gasket, was invented by Gore more than 40 years ago. It is a time-tested sealing solution for steel flanges with large diameters, rectangular or irregular shapes, and rough or pitted surfaces. When compressed, this soft, conformable cord forms a thin yet strong seal. It can also seal applications where available bolt loads are low.
GORE Joint Sealant is made of 100% monoaxially expanded PTFE (ePTFE), using Gore’s expansion technology to create a high degree of fibrillation.

Press Into Place Any Shape, Seal Irregular Flanges
A spool of Gore Gasket Tape Series provides an immediate, cost-effective solution to sealing challenges that demand reliable performance and extended durability. This advanced product, with its industry-leading creep resistance, is designed to maximize the operational reliability of large steel-flanged applications, especially those with thermal cycling.
These products are offered in different cross sections, thicknesses and lengths. GFS keeps a large inventory of Joint Sealant and Gasket Tape. If you require the input or design assistance of a GFS engineer for your application, please contact GFS here.
GORE Joint Sealant can instantly be formed in place to fit any shape, regardless of flange size or complexity. It adheres readily, and forms a gasket when the ends are overlapped – so even sealing vertical flanges is a one-person job.
This advanced product, with its industry-leading creep resistance, is designed to maximize the operational reliability of large steel-flanged and glass lined tank applications, especially those with thermal cycling.