Can you make custom gaskets to my exact dimensions?

Yes. We cut custom gaskets to the dimensions you specify. Enter your measurements in the online configurator, choose your material (Neoprene, Silicone, EPDM, Buna-N, Cork, or Fiber), and get an instant price. Custom gaskets ship within one business day after the order is placed. Larger orders may require additional time. No minimum order.

Do you cut custom flange gaskets with bolt holes?

Yes. Our Flange Gasket template lets you specify the outer diameter, inner diameter (bore), bolt circle diameter, number of bolt holes, and bolt hole size. We cut custom flange gaskets in Neoprene, Silicone, EPDM, Buna-N (NBR), Cork, and Fiber/Compressed Gasket Paper with instant online pricing.

Can you cut circular disk gaskets and ring gaskets?

Yes. We cut circular disk gaskets (solid discs) and ring gaskets (annular rings with a center bore) up to 32.5 inches in diameter. Neoprene, Silicone, EPDM, Buna-N, and Cork all available.

Do you cut rectangular gaskets and square gaskets?

Yes. We cut flat rectangular gaskets, square gaskets, and rounded-corner rectangular gaskets to your exact dimensions. Available in Neoprene, Silicone, EPDM, Buna-N (NBR), Cork, and Fiber/Compressed Gasket Paper. Maximum part size 32.5 x 32.5 inches.

What elastomer gasket materials do you cut?

We cut custom elastomer flat gaskets in Neoprene (CR), Silicone, Buna-N (NBR), EPDM, Cork, and Fiber/Compressed Gasket Paper. Each material is available in multiple thicknesses.

How do I get an instant price for a custom cut gasket?

Use the configurator on this page. Select your gasket shape, pick a material and thickness, enter your dimensions, and the price updates live - no quote request, no email, no back-and-forth. Add directly to cart.

What gasket shapes can you cut?

We cut over 30 shapes: disk gaskets, ring gaskets, flange gaskets (with bolt holes), exhaust gaskets, rectangular gaskets, rounded-corner rectangles, square gaskets, capsule/slot gaskets, ovals, pentagons, hexagons, octagons, and trapezoids.

Is there a minimum order quantity for custom cut gaskets?

No minimum order. We cut single custom gaskets as readily as bulk orders. Price per piece decreases automatically with quantity in the configurator.

How long does production take?

Most orders are cut and shipped within one business day. Larger orders may take longer.

What is the maximum size gasket you can cut?

The largest part is 32.5″ × 32.5″ in Neoprene, Silicone, EPDM, Buna-N, Cork, and Fiber/Compressed Gasket Paper. The configurator tells you if your part is too large for the selected material. Contact us for larger parts.

What file format do I need to submit for a custom gasket order?

No file is needed for the standard gasket shapes. Our online configurator generates the cut geometry from the dimensions you enter. A DXF file is only needed if you want a custom outline that is not one of the standard shapes: choose the Custom DXF Upload option and upload a .dxf file.

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Custom Ring Gaskets & Seals

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A ring gasket is an annular seal defined by an outer and inner diameter — the standard shape for sealing bolted pipe flanges and round housings. We CNC cut (laser, waterjet, and more) custom ring gaskets to your exact dimensions in any material, no minimum order, shipped within one business day.

Dimensions You Enter for a Ring Gasket

Outer diameter	Full outer width of the ring
Inner diameter	The center hole / bore
Thickness	1/16", 1/8", 3/16", or 1/4"

Available in every material we stock — neoprene, silicone, EPDM, Buna-N, Viton, PTFE, cork, and fiber. Additional specs on request.

Common Ring Gasket Applications

Pipe and flange face seals
Pump and compressor housings
Valve body gaskets
Bearing and hub seals
Tank and vessel fittings

If your flange needs a bolt-hole pattern, order a custom flange gasket instead. Compare materials in the materials guide.

Need a flat washer instead of an annular seal? See Custom rubber washers.

Ring Gasket FAQs

What is a ring gasket?

A ring gasket is a flat annular gasket with a defined outer and inner diameter, used to seal the raised face of a bolted flange or a round bore.

How do I measure a ring gasket?

Enter the outer diameter and the inner diameter (bore) in the quote tool. We cut the ring to those exact dimensions in your chosen material.

Enter your dimensions in the quote tool above for an instant price on custom ring gaskets from Fastest Gaskets — no minimum order, ships in one business day. Large orders may take longer.

Related materials: Viton gaskets.

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

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

More detail: Measuring Guide. Materials: Materials Guide.

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Quick and good

Great company, fast service and good quality product

Great service and fast shipping A+

Everyone has placed an online order at least once in their life. I am no different; I consider myself part of this category. However, I have to admit that I have never written a review before because, generally, things tend to go as expected.

But I have never been as impressed with an online order as I was this time.

I ordered some unusual gaskets for my central heating boiler, and honestly, I was left speechless by how quickly they responded. Not only did they process the order very quickly, but they also shipped the package so fast that I hardly had time to check my email before I started tracking it step by step with the tracking code.

It's rare to encounter a company so serious, prompt, and professional that the entire process feels almost magical. In a world where everything often seems rushed and half-done, they manage to set an example of reliability and respect for the customer.

It goes without saying that I wholeheartedly recommend these people. If anyone reading this thinks it’s an exaggeration or a fake review, I am more than willing to leave my contact details—name, surname, phone number, and anything else—to prove the sincerity and authenticity of my experience.

I was truly overwhelmed by their professionalism, promptness, and seriousness. I am confident that any customer who reaches out to them will be just as satisfied as I am now.

These people truly deserve all the respect and recognition. It’s rare to find such a dedicated team that puts so much heart into what they do.

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Custom Ring Gaskets & Seals