Purified graphite sheet flexible graphite gasketing

The graphite flake has been acid washed, expanded under heat, and then compressed into sheets with a minimum graphite content of 98%. For thicknesses under 1/16” homogenous graphite is used. For thicknesses over 1/16” laminated graphite is used. The laminated graphite sheets are bonded with a proprietary adhesive. This adhesive makes up less than 1% of the total laminated weight.

Laminated graphite sheet with a 316SS wire mesh insert

GRAPH-LOCK® 3124 and 3126 feature laminated layers of purified natural graphite flake that have been acid washed, expanded under heat, and then compressed into sheets with a minimum graphite content of 98%. This sheet contains a 0.0075” thick - JC thick 316 stainless steel wire mesh (24 mesh) insert, bonded with a proprietary adhesive. This adhesive makes up less than 1% of the total laminated weight. 

GRAPH-LOCK® 3125SS has laminated layers of 0.015" purified natural graphite flake that have been acid washed, expanded under heat and then compressed into sheets with a minimum graphite content of 98%. This sheet contains a 0.002” thick 316 stainless steel foil insert, bonded with a proprietary adhesive. This adhesive makes up less than 1% of the total laminated weight.

GRAPH-LOCK® 3128 HOCHDRUCK® is a multi-layer, high strength sheet material composed of .020” thick layers of high purity flexible graphite (carbon >99.85%) and .002” thick layers of 316 stainless steel foil insert. It provides high compressive strength, blow-out resistance, excellent handling properties, and improved tightness. Depending on the sheet thickness, several layers of graphite and stainless steel are bonded together in a proprietary process; no adhesive is used. Maximum ash content is 0.15%.