The Graphonic gasket is a metallic corrugated core with a compressible outer sealing element of various materials. The advantage to this type of gasket is its’ resistance to high temperature, thermal cycling, corrosive environments at a competitive cost. This gasket is API and FITT fire-safe tested and approved.

 

The Tephonic gasket contain the same core with an expanded Teflon outer in order to seal under less bolt torque load and can withstand temperatures up to 500 degrees.

 

Graphonic Handbook