Est. 1984 · Howrah, West Bengal · ISO 9001

Engineered
To Seal.
Built to Last.

4 decades of precision rubber manufacturing. OEM-approved. Concept to component in hours, not weeks.

Silicone EPDM FKM NBR CR SBR IP 66 · IP 67 · IP 68 IS / BS / ASTM Made in India
Certification
ISO 9001
Quality Management System
Ingress Protection
IP 66 / 67 / 68
Dust & Immersion Rated
Ready Tooling
10,000+ Sizes
Gaskets · Grommets · O-Rings
In-House Compounds
200+ Formulations
Developed, tested & certified in-house
40+
Years of Precision Manufacturing
10,000+
Gaskets, Grommets & O-Rings in Tooling
200+
Custom Compounds Developed & Tested
OEM
Approved Across Multiple Industries
Extruded channels
O-Rings
Rubber bushes
Silicone sponge
In-House Facilities
End-to-End Manufacturing

Everything under one roof. No outsourcing, no delays, complete control.

Compounding & Mixing

Dispersion kneader mixing under high pressure and controlled temperature. Two-roll mill finishing. In-house compound formulation for all major elastomers.

Dispersion KneaderTwo-Roll MillCustom Compounds

Compression & Transfer Moulding

Hydraulic press moulding to tight tolerances. Metal and plastic bonded rubber components. Mild steel, EN31 and stainless steel moulds.

Hydraulic PressMetal BondedClose Tolerance

Continuous Vulcanizing Extrusion

Microwave and hot-air curing lines. Thousands of die profiles on hand. Seamless end-to-end joining for A, D, and P-type gaskets.

Microwave CureHot-Air CureSeamless Splicing

CAD Design & CNC Toolroom

Full in-house product design in CAD / 3D. CNC toolroom for mould making, maintenance, and reverse engineering of elastomer components.

CAD / 3D DesignCNC Mould MakingReverse Engineering

Testing & Analysis

Dimensional inspection, physical property testing, and reverse engineering analysis against IS, BS, and ASTM standards.

IS / BS / ASTMDimensional QCMaterial Analysis

Import Substitution

Replacing high-cost imported rubber components with locally manufactured, OEM-approved equivalents — without compromising specification.

OEM ApprovedCost ReductionDrop-In Replacement
Product Range
What We Manufacture

Moulded and extruded components across sealing, gasketing, vibration isolation, and custom applications. Manufactured to your drawing or specification.

Extruded Profiles and Channels
01 — Extrusion

Profiles & Channels

1000s of cross-sections. Custom dies to drawing. Constant cross-section along full length.

Moulded Gaskets
02 — Moulding

Moulded Gaskets

Complex geometry seals. Prevents leakage under pressure and temperature cycling.

Pipe Joint Gaskets
03 — Moulding

Pipe Joint Gaskets

Flanged and slip-joint types. Water-tight sealing for the life of the installation.

Extruded Tubing
04 — Extrusion

Rubber Tubing

Hollow cylinders for liquid transfer, gas transfer, insulation, and gasketing.

Silicone EPDM Sponge Profiles
05 — Extrusion

Silicone / EPDM Sponge

Foam profiles, cords, strips. Lower compression stress and weight versus solid rubber.

Joined Gaskets and Seals
06 — Extrusion

Joined Gaskets & Seals

A-Type, D-Type, P-Type. Seamless end-to-end splicing for enclosure sealing.

O-Rings
07 — Moulding

O-Rings

Ready tooling for 10,000+ sizes across all major compounds. Static and dynamic sealing.

Washers and Circular Gaskets
08 — Moulding

Washers & Gaskets

1,000+ standard sizes. Custom dimensions to drawing. All elastomers available.

Rubber Bushes and Pads
09 — Moulding

Bushes & Anti-Vibration Pads

Vibration isolation and energy damping. Evenly distributes load between surfaces.

Rubber Grommets
10 — Moulding

Rubber Grommets

IP 67 / IP 68 cable and wire sealing. Reliable and repeatable ingress protection.

Silicone Rubber Strips VINSA
11 — Extrusion

Silicone Strips · VINSA™

Specially compounded silicone strips for packing and sealing under our VINSA brand.

Compound Selection
Materials We Work With

Matched to your chemical, thermal, and mechanical requirements. Technical guidance on every enquiry.

Silicone
VMQ / Silicone Rubber
-60°C to +200°CFood-safe gradesMedicalHigh temp
EPDM
Ethylene Propylene Diene Monomer
UV/Ozone resistantWeatheringSteamHot water
FKM
Fluoroelastomer (Viton)
Chemical resistantUp to +200°CFuel & oilAerospace
NBR
Nitrile Butadiene Rubber
Oil resistantFuel resistantAutomotiveHydraulic
CR
Neoprene / Chloroprene
Flame retardantWeather resistantGeneral purpose
SBR
Styrene Butadiene Rubber
Abrasion resistantGood agingCost-effective
Technical Specialisations
Where We Excel

Three areas where our capability runs deeper than standard rubber manufacturing.

01

Soft Silicone Extrusions — 30 Shore A

Extruding silicone at 30 Shore A is technically demanding — the compound is highly elastic and difficult to control dimensionally through the die. We have mastered the compounding, die design, and vulcanization parameters to produce consistent soft silicone profiles at this hardness — ideal for LED luminaire seals, electronics enclosures, and medical device housings where low closure force is critical.

30 Shore A Hardness Low Compression Load Silicone VMQ LED Luminaire Seals Electronics Enclosures Medical Housing Seals
02

Silicone Rubber Foam & Sponge Extrusions

Closed-cell and open-cell silicone sponge profiles in any cross-section. Seals at significantly lower compression force than solid rubber — essential for lightweight enclosure lids where distortion under clamping is a concern. Operating range -60°C to +200°C. UV and ozone stable. EPDM sponge available for cost-sensitive applications.

Closed-Cell Silicone Sponge Open-Cell Foam EPDM Sponge -60°C to +200°C Low Closure Force Cut to Length
03

Seamless Extruded Gaskets — Cut, Joined & Endless

We extrude profiles to precise lengths and join the cut ends with a flexible vulcanised bond — producing a seamless, endless gasket loop. No glue, no weak corners. Unlike moulded frame gaskets, any perimeter size is possible without new tooling. Available in A-Type, D-Type, P-Type and custom cross-sections for switchgear, luminaire housings, and dehumidifier doors. Supplied ready to fit.

Seamless Endless Gaskets Vulcanised Joint A-Type / D-Type / P-Type Any Perimeter Size No Tooling Change Ready-to-Fit Loops
How We Work
Enquiry to Component

In-house design and toolroom capability compresses lead times dramatically. Concept to component in hours, not weeks.

01
Enquiry

Send drawing, sample, or spec. Technical guidance provided on material and design.

02
Compounding

Elastomer mixed with additives in dispersion kneader. Aged for optimal properties.

03
Tooling

CNC mould or extrusion die machined in-house. Fast toolroom turnaround.

04
Moulding / Extrusion

Hydraulic press or continuous vulcanizing extruder. Dimensions held to spec.

05
QC & Despatch

Dimensional check, de-burring, final inspection. Despatched with documentation.

Ingress Protection
IP-Rated Sealing

Components designed for IP 66, IP 67, and IP 68 enclosure sealing applications.

IP 66
Dust-tight. Protected against powerful water jets from any direction.
Profiles · Joined Seals · Gaskets
IP 67
Dust-tight. Temporary immersion up to 1 m depth for 30 minutes.
Grommets · O-Rings · Moulded Seals
IP 68
Dust-tight. Continuous immersion beyond 1 m — per manufacturer spec.
Custom Mouldings · Precision Seals
Sectors We Serve
Industries

Engineered for these industries — not generic rubber, but components built for how your products actually work.

Electrical & Switchgear

Seals and gaskets for switchgear panels, distribution boards, and junction boxes meeting IP54 to IP68 ratings with consistent compression set over long service life.

Panel Door SealsGasketsGrommetsCable Entry SealsJoining Profiles

Outdoor Lighting

Weatherproof Silicone and EPDM seals for LED street lights, floodlights, and solar fixtures — UV stable, thermal cycling from -40°C to +150°C, IP66/IP67 rated.

Lens GasketsHousing SealsO-RingsSilicone ProfilesSponge Strips

Dehumidifiers & HVAC

Vibration isolation mounts, compressor grommets, and door seals in NBR and EPDM — resistant to condensation, refrigerants, and sustained mechanical vibration.

Anti-Vibration MountsDoor GasketsCompressor GrommetsTube Seals

Electronics & PCB Enclosures

Precision thin-section seals and micro grommets for electronic enclosures and IoT device housings — tight dimensional tolerances for IP67/IP68 on compact formats.

Micro GrommetsO-RingsEnclosure SealsThin Gaskets

General Engineering & OEM

Long-term supply partnerships for pumps, valves, and industrial equipment — we hold tooling, maintain stock profiles, and supply on call-off with consistent batch quality.

Pump SealsValve GasketsRubber BushesCustom Profiles

Import Substitution

We reverse-engineer imported rubber components and manufacture OEM-approved local equivalents at or below import price — proven with electrical, lighting, and engineering customers across India and the USA.

Reverse EngineeringDrop-In ReplacementOEM ApprovedIndia & USA Supply
Why Silton Rubber
The Numbers That Matter
2–3
Day Sample Turnaround
Drawing to physical prototype. In-house CNC toolroom, no external wait.
40+
Years of Expertise
Founded 1984. Four decades of compounding knowledge and OEM approvals.
200+
Custom Compounds
Developed and tested in-house to your exact temperature, chemical, and mechanical spec.
≤Import
Price vs Imports
Match or beat imported prices. OEM-approved. India and USA supply.

Have a question?

Common Questions
We work with Silicone (VMQ), EPDM, FKM (Viton), NBR (Nitrile), Neoprene (CR), and SBR. Beyond these, we have developed over 200 custom compound formulations in-house — optimised for specific temperature ranges, chemical exposures, IP ratings, and mechanical performance. Tell us your operating conditions and we'll recommend the right compound.
Yes. We manufacture grommets, seals, gaskets, and profiles for IP66, IP67, and IP68 applications — switchgear enclosures, outdoor LED lighting, junction boxes, and dehumidifier housings. We design for compression set behaviour and creep resistance required to maintain the IP rating across the product's operational life, not just at first assembly.
Typical production runs are 500 to 10,000 pieces. Samples and prototypes are turned around in 2 to 3 days — our in-house CAD and CNC toolroom means no external dependency. Repeat orders with existing tooling are generally 7 to 14 working days. Contact us with your requirement for a specific timeline.
Yes — we supply customers in India and the United States. We are experienced in export documentation and quality certifications required for US buyers. If you are a US-based manufacturer looking for a reliable Indian rubber component supplier with OEM approvals and a 40-year track record, we are set up to work with you.
Yes. Send us a sample, drawing, or datasheet. We reverse-engineer it, recommend the correct compound, and manufacture an OEM-approved local equivalent. Our pricing matches or beats import cost including freight and duties — proven with customers in electrical, lighting, and general engineering sectors.
Yes, Silton Rubber is ISO 9001 certified. Our QMS covers compound formulation, moulding and extrusion, in-process dimensional checks, and final inspection before despatch. We test against IS, BS, and ASTM standards as required. Full documentation and traceability with every order.
A seamless joined gasket is extruded to a precise length and the cut ends are vulcanised together — creating an endless loop with no glue, no weak corners, and no tooling change for different perimeter sizes. The joint has the same compression and flex characteristics as the rest of the profile, maintaining a consistent IP rating around the full loop. Available in A-Type, D-Type, P-Type, and custom cross-sections, ready to fit.
We regularly manufacture silicone extrusions at 30 Shore A — very soft, requiring specialised compound formulation and die design. Ideal for LED luminaire seals, electronics enclosures, or medical device housings where low closure force is critical. We also supply silicone sponge and foam profiles for even lower compression set forces.
Absolutely. Send your drawing in any format — DXF, PDF, STEP, or a hand sketch — and we'll quote on tooling and per-piece pricing. Our CNC toolroom cuts moulds and extrusion dies quickly. We've made everything from micro O-rings under 5mm to panel seals over a metre long.
Get in Touch
Request a Quote

Send a drawing, sample, or describe your requirement. We'll respond with material recommendations, pricing, and lead times.

Factory
34/1 N. S. Road, Liluah
Howrah 711204, West Bengal
Office
5C Diamond Towers, 37 Diamond Harbour Road
Alipore, Kolkata 700027
Email
Phone / WhatsApp

Founded 1984 · ISO 9001 Certified

Headed by Mr. Abhishek Jain, Rubber Technologist. Long list of satisfied OEM customers across India.

Option 1 — Instant WhatsApp

Opens WhatsApp with your enquiry pre-filled. We respond fast.

Option 2 — Email

Sends to abhishek@siltonrubber.com. We respond within 1 business day.