Gaskets

Soft-Cut Gaskets

CNAF, Rubber, PTFE, Graphite, and more

We cut non-metallic gaskets from sheet stock to your drawing, sample, or standard flange dimensions: CNAF, rubber, PTFE, flexible graphite, cork composites. CNC knife for most jobs, waterjet or laser when the geometry or material demands it. Die cutting makes sense once quantities justify the tooling.

Types & Variants

Compressed Fibre (CNAF)

General-purpose gaskets in Klingersil, Donit, and equivalent compressed fibre sheets. Rated to 100 bar and 200 °C depending on grade.

Rubber Gaskets

Full-face and ring gaskets in Nitrile (NBR), EPDM, Neoprene, Viton, and Silicone sheet. For water, chemical, and food-grade applications.

PTFE Gaskets

Virgin and filled PTFE sheets cut to shape. Handles virtually all media except molten alkali metals. Watch for cold-flow under sustained bolt load, especially on larger flanges.

Graphite Gaskets

Flexible graphite sheet gaskets with or without tanged metal inserts. The go-to for steam and high-temperature flange joints, though you'll want the tanged version if there's any chance of blowout.

Cork & Cork-Rubber

Good for oil, fuel, and solvent sealing at low pressures. You'll see these on gearbox covers, sumps, and inspection plates. Not suited to steam or high-temperature duty.

Insulating Gaskets

Non-conductive gasket materials including G10/G11 fibreglass laminate and phenolic composites for electrical isolation.

Common Applications

Water & Wastewater

Pump housings, valve bonnets, pipe flanges, and filter covers across treatment plants.

Chemical Processing

Reactor vessels, heat exchangers, and piping in corrosive service requiring chemical-resistant materials.

Mining & Minerals

Slurry pumps, crusher housings, and process equipment subject to abrasion and vibration.

General Maintenance

Replacement gaskets for any flanged connection, cut from stock sheet or to your sample.

Materials & Standards

Materials

  • Compressed non-asbestos fibre (CNAF)
  • Nitrile (NBR), EPDM, Neoprene, Viton, Silicone rubber
  • Virgin and filled PTFE
  • Flexible graphite (with and without tanged insert)
  • Cork, cork-rubber composites
  • G10/G11 fibreglass laminate

Standards

  • AS 1210: Pressure vessels
  • AS 4087: Metallic flanges for waterworks
  • ASME B16.21: Non-metallic flat gaskets for pipe flanges
  • DIN 2690: Flat gaskets for flanges
  • EN 1514-1: Non-metallic flat gaskets with or without inserts

Need Custom-Cut Gaskets?

Send us a drawing, sample, or even a rough sketch with dimensions. Most orders ship in 1–3 days from stock sheet.

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Disclaimer

This page is provided for general engineering reference only and does not constitute professional advice, specification, or guarantee of performance. Actual results depend on specific application conditions. Universal Gaskets Pty Ltd accepts no responsibility or liability for decisions made based on this information. For full terms, see our Terms & Conditions.