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Custom EPDM Gaskets Cut to Size — Instant Quote

Custom EPDM Gaskets Cut to Size — Instant Quote

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Custom EPDM Gaskets — Weather, UV & Water Resistant

EPDM is the best rubber gasket material for outdoor, UV, ozone and water exposure — not for petroleum oils. Fastest Gaskets CNC cuts (laser, waterjet, and more) custom EPDM gaskets to ±0.015″. Instant quote, no minimum, ships in one business day. Large orders may take longer.

What EPDM is good for

  • Excellent UV and ozone resistance — won’t crack or harden outdoors
  • Rated for water, steam, and mild acids; resists swelling in most aqueous environments
  • Temperature range: -65°F to +300°F
  • Available in 1/32", 1/16", 3/32", 1/8", 3/16", and 1/4" thicknesses

EPDM is not recommended for petroleum oils, gasoline, or hydrocarbon-based fluids — for those applications, Buna-N (nitrile) or neoprene is the better choice.

Common EPDM gasket applications

  • HVAC equipment and ductwork flanges
  • Plumbing and irrigation fittings
  • Outdoor electrical enclosures
  • Pool and spa equipment
  • Rainwater harvesting systems

EPDM vs neoprene vs silicone

  • EPDM — best when the job is outdoor / UV / ozone / water (not oil)
  • Neoprene — general-purpose when you need a balance of oil + weather
  • Silicone — high-temperature service

See the materials guide for the full comparison.

Shapes available

Not sure how to take dimensions? Start with our measuring guide. How to order: Enter your dimensions above for an instant price. We CNC cut (laser, waterjet, and more) your gasket from sheet stock and ship in one business day from Orange, CA. Large orders may take longer.

Frequently asked questions

What’s the difference between EPDM 40 and EPDM 60?
The number refers to durometer (hardness). EPDM 40 is softer and conforms more easily to uneven surfaces. EPDM 60 is firmer and holds shape better under bolt load. Our standard stock is 60A durometer, which suits most general-purpose applications.

Can I order a custom shape from a drawing?
Yes — use the DXF upload page to upload your file and get an instant price on any custom shape.

What tolerances do you cut to?
We CNC cut (laser, waterjet, and more) to ±0.015" on most materials and thicknesses.

Related

Need help before you order?

Which material should I pick?

Full comparison on our Materials Guide.

  • Hot parts with oil or fuel (engines, exhaust) → Viton (FKM)
  • Hot parts, no oil (ovens, HVAC) → Silicone
  • Oil or fuel (pumps, hydraulics, petroleum) → Buna-N (Nitrile) — or Viton for higher heat
  • Water / outdoor / sun → EPDM
  • General automotive or light oil → Neoprene
  • Chemicals / aggressive fluids → PTFE (Teflon) — or Viton for high heat plus chemicals
  • Soft seal / uneven surfaces / low pressure → Cork blends

Not sure which material fits? Email us at fastestgaskets@gmail.com.

We CNC cut (laser, waterjet, and more) to ±0.015″. Up to 32.5″ × 32.5″ for most materials; the quote tool shows the exact limit for the one you pick. Ships in one business day. Large orders may take longer.

How to measure
  1. Measure the outside size — diameter for rounds, or length × width for rectangles and squares.
  2. Measure the inside opening and any holes (ID, bolt holes, bolt circle if it is a flange).
  3. Note the thickness you need — pick it in the quoter.
  4. Enter sizes in inches.
  5. Already have a drawing? Upload a DXF for an instant price.

More detail: Measuring Guide. Materials: Materials Guide.