Cut Gasket as per size & drawing of Asbestos / Non-Asbestos Jointing & PTFE Gasket. Gasket must maintain a seal for an acceptable period against all of the operational forces involved and to achieve this, there are eight important properties which any good gasket should possess:

The Gasket should not be porous to the fluid being sealed.
The gasket should compress into the inperfections on the flange to create initial seal on application of sealing force.
Gasket should not show significant creep under the influence of load and temperature. Such flow will allow the bolts to relax, reduce gasket surface stress and cause leakage.
The gasket should be capable of catering to slight distortion between the flanges.
The gasket should withstand chemical attack from the media being handled.
The gasket has to be easily dismantled after use.
The gasket should be able to withstand effects of temperature of the confined media.
The gasket should not cause corrosion of the flange faces.