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Industry: EV and battery systems

Rubber components for EV and battery systems

Exonel makes the sealing and vibration parts for EV battery packs and energy-storage enclosures: pack lid gaskets, cable and harness grommets, extruded perimeter seals, washers and anti-vibration pads. Made to drawing in silicone and EPDM, with flame-retardant silicone where specified.

Pack lid gasketsHarness grommetsPerimeter sealsAnti-vibration pads
What we make

Rubber parts for EV and battery systems.

Battery enclosure gaskets

Moulded or joined gaskets that seal the pack lid against dust and water while the pack heats and cools.

Cable and harness grommets

Grommets and strain reliefs designed for IP67/IP68 sealing applications at cable entries.

Perimeter profiles

Extruded sponge or solid profiles for pack edges and module separators.

Washers, pads and mounts

Insulating washers and anti-vibration pads for module and controller mounting.

What the environment demands

Compound follows the conditions.

Thermal cycling

Packs heat under charge and discharge. Silicone keeps its seal through repeated cycles.

Vibration

Road vibration works at every joint. Sponge sections and bonded pads absorb it.

Flame retardance

Flame-retardant silicone compounds are available where the specification asks for them.

Compression set

A gasket that takes a permanent set stops sealing. Compound and section are chosen so the gasket recovers.

How to specify

What to send us

Send the enclosure or gasket drawing, the operating temperature range, the clamping arrangement, cable diameters for grommets, and the target IP rating. Tell us if a flame-retardant grade is required.

FAQ

Common questions

What rubber is used for EV battery pack gaskets?
Silicone is the common choice for its temperature range and low compression set. EPDM is used where cost matters more than temperature range. The choice is confirmed for your pack.
Can you make a battery enclosure gasket to a drawing?
Yes. Moulded gaskets, joined frames and extruded profiles are all made to drawing.
Is silicone always the right choice for battery sealing?
No. It depends on temperature, compression, exposure and cost. Silicone is one option among the six base polymers we work with.
Do you supply complete battery packs?
No. Exonel makes the rubber and elastomer components. Complete battery packs are outside our scope.

Need battery pack gaskets or grommets?

About Exonel Industries

Exonel Industries makes custom moulded and extruded rubber components in Howrah (Kolkata), West Bengal, and supplies manufacturers across India. We work in six base polymers, Silicone, EPDM, FKM, NBR, Neoprene and SBR, formulated into hundreds of compounds. Compounding, tooling and production are done in-house. Send a drawing, a sample or a specification for a quote.

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