O-Ring Cord: Build Custom Seals for Any Application
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When you can’t find the exact O-ring you need, O-ring cord is the answer.
Rather than relying on pre-moulded rings, O-ring cord lets you create a custom-sized seal by cutting the length you need and joining the ends. It’s quick, economical, and ideal for workshops, engineers, and maintenance teams that deal with varied or hard-to-source seal sizes.
Now Available from Selo
We’ve just added O-ring cord to our range at SealWithSelo.com
Right now, you’ll find a selection of metric and imperial NBR (nitrile) 70 Shore cords, available by the metre — perfect for general-purpose sealing, oils, fuels, and compressed air systems.
Each length is cut to order, so whether you need a short piece for a quick repair or several metres for stock, you can buy exactly what you need — no pack sizes, no minimum order.
More Materials and Sizes Coming Soon
This is just the start. We’ll soon be expanding the range to include:
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FKM (Viton®) for higher temperature and chemical resistance.
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Silicone for flexibility and clean sealing.
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EPDM for water and brake-fluid applications.
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A wider variety of Shore hardness and cross-section diameters to suit every sealing requirement.
If there’s a particular size or material you’re looking for, let us know — we can prioritise adding it to the range.
Why Use O-Ring Cord?
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Custom sizing: Make O-rings of any diameter in-house.
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Quick repairs: Replace worn seals without waiting for exact sizes.
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Cost-effective: Only buy the material you need.
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Flexible stock: Keep a few standard sizes of cord instead of hundreds of pre-moulded rings.
To make an O-ring, simply cut the cord cleanly to length, apply a small amount of adhesive (super-glue or O-ring bonding kit), and hold until set. It’s simple and reliable.
Shop the Range
Explore our growing selection of O-ring cord by the metre here:
O-Ring Cord by the Metre – Metric & Imperial Sizes | SealWithSelo – Seal with Selo