ptfe and non-asbestos gasket

PTFE -based gasket materials are able to withstand significantly more aggressive chemical environments (including highly oxidizing environments) than standard non-asbestos gasket materials. However their temperature, pressure and mechanical performance is inferior to standard non-asbestos gasket materials.

The difference between asbestos and non-asbestos gaskets

Asbestos fibers are durable and can withstand high temperatures.  These fibers are thin and long.  Manufacturers of non-asbestos gaskets use graphite, PTFE and other materials as the reinforcing fibers of the gasket.  These fibers have properties such as heat resistance, chemical resistance, and temperature resistance.  The properties of these fibers ensure that the performance of the gasket is not affected by the discontinuation of the use of asbestos.

Asbestos gaskets are made of silicate fibers, while non-asbestos gaskets are produced using carbon-based or organic materials.  Asbestos gaskets are relatively cheaper than non-asbestos gaskets.  The gasket manufacturer has consistently used different materials to provide customers with innovative and efficient non-asbestos gaskets that can be easily customized according to their needs.

Non-asbestos gaskets are made of organic fiber, aramid fiber, nitrile rubber and mineral fiber.  These can be used in applications requiring water or oil resistance.  Generally, non-asbestos gaskets are used in low-voltage installations, transformers and compressors.  They are also used in the valve covers and pans of internal combustion engines, where there are easily deformable parts.

These days, gasket manufacturers provide non-asbestos gasket sheets, which may have certain characteristics or better characteristics than asbestos gaskets.  Because carbon or organic materials are the basic materials for non-asbestos gaskets, they are safer to use than asbestos gaskets.

All over the world, asbestos liners are still in use, if not all, they are manufactured in proprietary quantities.  Gasket manufacturers who understand the potential risks of asbestos are turning to non-asbestos gaskets.  Regulators have also issued bans and restrictions on the use of asbestos by manufacturers.