Seals for classic cars: the bespoke, Made in France solution from BORFLEX®

28 September 2026

Bringing classic cars back to life, one seal at a time

There are one million classic cars on the road in France, representing a market estimated at 4 billion euros. Behind every successful restoration lies a multitude of technical details, and one of the most underestimated of these concerns bodywork seals. As original parts are no longer available – and these seals are specific to each model – they can bring entire restoration projects to a standstill. BORFLEX®, a French manufacturer of elastomers for over 65 years, has developed an industrial solution to this very real problem.

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Door seals, window surrounds, sliding guides, weatherstrips, roof seals or tailgate seals: these rubber parts are designed to fit a unique profile specific to each vehicle. Over time, the rubber hardens, cracks and loses its watertight seal. However, original manufacturer’s stocks are depleted, and generic equivalents do not match the required geometry or appearance. The result: water ingress, draughts, and a restoration that remains unfinished due to the lack of a part costing just a few tens of euros.

Standard and bespoke seals

The BORFLEX® method: from a used sample to a seal ready for installation

Where standard catalogues leave off, BORFLEX® engineering begins. The principle: starting from reality.

  • We can recreate the profile using your original joint – even if it is partially damaged – or from a dimensioned photograph or a drawing.
  • The appropriate elastomer (EPDM, silicone, neoprene or TPE) is formulated to meet the required hardness, as well as resistance to UV light, ozone and temperature fluctuations.
  • We produce in small batches, including cutting to length, chamfering and joining: a ready-to-deliver part, requiring no further workshop finishing.

Every formulation is archived. Two years later, a club taking on new members can recommend exactly the same blend – a decisive advantage for bulk remanufacturing.

Made in France, from blending to dimensional inspection

All production takes place at the group’s French sites. This in-house control, from the mixing stage right through to the finished seal, guarantees three essential things for a restorer: adherence to the vehicle’s historical authenticity, responsiveness to specific requests, and the ability to reproduce the product identically over time.

Who is this offer aimed at?

  • Workshops, body shops and specialist mechanics
    looking for a reliable and responsive source for parts not listed in standard catalogues.
  • Collectors’ clubs and associations
    wishing to pool their orders for re-production.
  • Parts distributors
    wishing to expand their range to include premium products manufactured in France.
  • Motoring museums and conservatories
    committed to the faithful preservation of their collections, whether in working order or on display.

Our design offices will call you back to discuss the possibility of remanufacturing it.

Window seals

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