GORE® Joint Sealant

GORE® Joint Sealant

Cost-effective solution for steel flanges in standard applications

GORE® Joint Sealant

Versatile and easy-to-install, this 100% ePTFE sealing cord is a cost-effective solution for large steel flanges in general-use applications.

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.

Versatile GORE Joint Sealant is standard sealing material for many MRO (Maintenance, Repair and Operations) teams because it seals reliably – and because it’s easy and cost-effective to install. For most applications, just peel off the adhesive backing, apply to the surface, and overlap the ends.


Gore expanded polytetrafluoroethylene technology

GORE Joint Sealant is made of 100% monoaxially expanded PTFE (ePTFE), using Gore’s expansion technology to create a high degree of fibrillation.

High fibrillation is what improves strength and seal performance, and creates the soft, conformable surface that readily fills minor flange irregularities.

GORE Joint Sealant is chemically-resistant to all media (pH 0-14) except molten/dissolved alkali metals and elemental fluorine, so it is versatile enough for use in strong alkali-, acid- and solvent-based chemical process systems.


Typical Applications 

Large/non-standard steel equipment flanges:

  • Tank manways, ductwork, housing covers


Processes using highly-aggressive media:

  • Chemical processing
  • Pulp and paper
  • Mining and minerals
  • Semiconductor manufacturing
  • Power generation