The PTFE is bonded to the EPDM rubber for chemical and corrosion resistance. This gasket has concentric convex sealing rings to aid optimum sealing at lower bolt loads. The self centering gasket offers superior sealing for hazard media at low bolt torque.

The totally bonded elastomer and Teflon construction is ideally suited for fiberglass, glass lined and steel flanges. These gaskets will virtually eliminate cracked flanges, reducing installation cost, while maintaining a high performance seal.