Custom rubber components for OEMs, made to your drawing.
Gaskets, seals, O-rings, grommets, profiles, tubing and bespoke parts in Silicone, EPDM, FKM, NBR, Neoprene and SBR. Compounded, tooled and produced in-house in Howrah (Kolkata) and supplied to manufacturers across India.
Industrial rubber, delivered on principle. For procurement and engineering teams, from prototype to production.
How we work.
Built to the spec
Compound, tolerance and finish are held to what your application needs. If the drawing calls for it, we make it that way.
Same part, every batch
Made to the drawing and measured against it. Batch after batch.
Straight answers
We tell you what is possible and what is not before you commit to tooling.
No surprises
If anything changes on your order, you hear it from us first.
Built for the long term
We would rather keep a customer for years than win one order.
Moulded, extruded and custom.
Every part is made to a drawing, a sample or a specification, across six base polymers and the hundreds of compounds we formulate from them.
Gaskets & Seals
Compression-moulded gaskets and seals for pressure and temperature cycling. Rubber-to-metal bonding available.
O-Rings
Standard and metric sizes, static and dynamic sealing, in NBR, FKM, silicone and EPDM.
Rubber Grommets
Cable and wire grommets designed for IP67/IP68 sealing applications.
Rubber Washers
Flat, shouldered and sealing washers, moulded or cut to size.
Bushes & Anti-Vibration Pads
Bonded bushes, mounts and pads that isolate shock, noise and vibration.
Profiles & Channels
Custom cross-sections, extruded continuously and cut to length.
Silicone / EPDM Sponge
Closed-cell sponge profiles and strips that seal under low clamping force.
Joined Gaskets & Seals
Extruded profile vulcanised at the corners into endless frames and rings.
Silicone Tubing
Silicone tube to your bore and wall for fluid, air and cable routing.
Silicone Strips & Cords
Solid and sponge silicone strip, cord and tape for sealing and masking.
Customized Components
Send a drawing or a sample. We compound, tool and make the part.
Don't see your part?
If it is rubber, moulded or extruded, send the drawing. We will tell you if we can make it.
Six base polymers, hundreds of compounds.
Silicone is our specialism. We mould and extrude all six, and formulate each into the compound the part needs.
Silicone (VMQ), our specialism
Widest temperature range, strong UV and weather resistance, good electrical insulation. Food-grade and medical-grade compounds on request.
EPDM
Ozone, weather, steam and hot-water resistance. The default for outdoor seals.
FKM (Viton-type)
Heat together with oil, fuel and chemical exposure.
NBR (Nitrile)
Oil, fuel and hydraulic fluid resistance with good abrasion resistance.
Neoprene (CR)
Weather, moderate oil and flame resistance in one compound.
SBR
Abrasion and impact resistance for bushes, pads and general-purpose parts.
Design, compound, tool and make. All in-house.
We read the drawing, choose the compound, cut the tool and make the part. One workshop, one point of responsibility.
Start from your drawing or sample
We work from your drawing or a sample, prototype the part and prove it before production tooling is cut.
Match the rubber to the duty
The polymer and hardness are chosen for temperature, media and load. Compounds are mixed in-house.
Compression moulding
Compression moulding and rubber-to-metal bonding, held to drawing across the batch.
Constant cross-section
Profiles, channels, cords and tubing in custom sections. Extrusion dies are cut in-house.
Tooling made for your part
Moulds and dies are built for your geometry, in-house.
Make the imported part here
Send the imported part. We measure it, match the material and make it in Howrah.
Made for your industry.
Most of our work today comes from the sectors below. If your product has a rubber part that is hard to source, that is the work we want. Any industry.
Electrical & Enclosures
Enclosure gaskets, panel seals and cable grommets that keep dust and water out.
Lighting
Silicone gaskets and seals for LED luminaires and outdoor fittings.
Switchgear & Power Distribution
Insulating moulded and extruded parts for panels and distribution gear.
Industrial OEMs & Machinery
Made-to-drawing parts for the components no catalogue carries.
HVAC & Dehumidification
Gaskets, drain seals and anti-vibration pads for units and appliances.
Automotive
Grommets, gaskets, bushes and mounts for automotive ancillary assemblies.
EV & Battery Systems
Enclosure gaskets, cable grommets and perimeter seals for battery packs.
Renewable & Solar
Weatherproof gaskets and grommets for junction boxes and inverters.
Hydraulics & Pneumatics
O-rings, seals and gaskets in oil-resistant compounds.
And many more
Your industry is not listed? Send the drawing. Chances are we can make the part.
Two partners. Decades each.
Exonel is a new firm built on long experience: one founder in rubber design and manufacturing, the other in finance and operations.
20+ years as a rubber technologist. Designs, prototypes and manufactures moulded and extruded components, including rubber-to-metal bonded parts, in Silicone, EPDM, FKM, NBR, Neoprene and SBR. Formulates the compound to the hardness, temperature and chemical resistance the application needs, and designs for manufacture before a tool is cut.
20+ years in business strategy, growth and corporate finance. At Exonel he runs sales and operations: new accounts, key accounts, and the commercial discipline behind every quote and commitment.
