Non-Asbestos Gaskets

Non-asbestos gaskets are widely used for static sealing in industrial piping, pumps, valves, heat exchangers and processing equipment. They provide a practical sealing solution for applications where asbestos-free gasket materials are required.

Common non-asbestos gasket sheets are manufactured from a combination of synthetic or mineral fibers, elastomeric binders and selected fillers. The resulting material can be cut into standard flange gaskets, equipment gaskets and custom shapes for different sealing requirements.

Material composition and performance vary between grades, making it important to select the appropriate gasket for the operating fluid, temperature, pressure and flange conditions.

Non-Asbestos Gasket Materials

Aramid Fiber Gaskets

Aramid fiber is commonly used as a reinforcing material in compressed non-asbestos gasket sheets. Combined with suitable rubber binders and fillers, it provides mechanical reinforcement for a range of industrial static sealing applications.

These materials are often used in piping systems, pumps, valves and general industrial equipment. Their chemical and temperature resistance depends on the complete sheet formulation.

Glass Fiber Gaskets

Glass fibers can be used as reinforcement in selected non-asbestos gasket materials. They contribute to the mechanical structure of the sheet, while the binder and other ingredients determine much of its sealing behavior.

Different formulations are available for industrial applications requiring particular combinations of compressibility, strength and chemical compatibility.

Other Synthetic Fiber Gaskets

Non-asbestos gasket materials may also use other synthetic or mineral fibers, either individually or in combination.

These formulations are developed for different operating requirements. The material grade should be selected according to its published technical properties rather than the fiber type alone.

Gasket Types & Configurations

Full Face Gaskets

Full-face non-asbestos gaskets cover the flange face and include bolt holes matching the flange drilling pattern. They are commonly used with suitable flat-face flange connections.

Ring Type Gaskets

Ring-type gaskets fit inside the flange bolt circle without bolt holes. They are commonly used with suitable raised-face flanges and other compatible joint designs.

Equipment Gaskets

Non-asbestos gasket sheets can be cut into circular, rectangular, oval and irregular shapes for equipment covers, inspection openings, pumps, valves and other static sealing surfaces.

Custom Cut Gaskets

For non-standard equipment, gaskets can be produced according to customer drawings, dimensions or physical samples. Material grade, thickness, hole positions and gasket profile can be specified according to the application.

Industrial Applications

Non-asbestos gaskets are commonly used in:

• Industrial piping and flange connections

• Water supply and treatment systems

• Pumps, valves and fittings

• Heat exchangers and process equipment

• HVAC and industrial utility systems

• Selected oil, fuel and chemical service applications

• Equipment maintenance and replacement projects

Material Selection & Sealing Performance

The performance of a non-asbestos gasket depends on the complete material formulation, including its reinforcing fibers, binder and fillers.

Different grades have different resistance to temperature, pressure, chemicals and compression. A material suitable for water service may not be appropriate for hot oil, steam or aggressive chemicals.

Gasket thickness, flange surface condition and available bolt load also affect sealing performance. For demanding applications, the material manufacturer's technical data should be reviewed before selection.

Standard & Custom Gasket Supply

CORA SEALS supplies non-asbestos gasket options for industrial distributors, equipment manufacturers, maintenance contractors and piping suppliers.

Standard flange patterns and custom-cut gaskets can be reviewed according to drawings, samples or technical specifications. Different sheet materials and thicknesses can be sourced according to project and replacement requirements.

Request a Quote

Please provide the required gasket material or grade, dimensions, thickness and quantity. For flange gaskets, include the flange standard, nominal size and pressure class.

For custom gaskets, technical drawings or samples are helpful. Information about the operating medium, temperature and pressure can also help us review the material requirements before quotation.