Margo Rubber Products
EPDM foam C-pillar garnish seal

Sponge & Foam Rubber

C-Pillar Garnish Seal — EPDM Hard Foam

High-density closed-cell EPDM foam seal for C-pillar trim garnish — takes up the gap between garnish and body panel, stops the trim buzzing, and blocks wind noise and water from tracking along the pillar. Produced to your drawing at our plant in Nashik.

TEMPERATURE
−40 to +140 °C in EPDM sponge
THICKNESS
Free thickness to your drawing
WIDTH
Cut width and length to your drawing
DENSITY
To your specification, kg/m³
CELL STRUCTURE
Closed-cell
COMPRESSION FORCE DEFLECTION
To your specification
CLASSIFICATION
ASTM D1056 type, class and grade
QTY (pieces)
−10,000+
Minimum run: 10,000 pieces per part number
Request QuoteRequest documentation
  • MADE TO ORDER
  • CLOSED-CELL EPDM SPONGE

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Visual Reference

360° PREVIEW

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Max width
Cut width — to your drawing
Thickness
Free thickness — to your drawing
Run length
Cut length — to your drawing
Compressed height
What the seal becomes once the trim is clipped down
Gap range
Minimum and maximum joint gap the seal must close
Adhesive backing
Self-adhesive tape applied to your specification, or supplied plain

Section drawing available on request. Send the joint gap range and the closing force available, or a sample of the existing seal, and we will return a dimensioned section for approval.

Technical specifications

Engineering Data

Product Family
Sponge & Foam Rubber
Material
EPDM closed-cell sponge
Elongation at Break
Per compound datasheet
Operating Temperature
−40 to +140 °C in EPDM sponge
Compression Set
Tested to ASTM D1056
Density
To your specification, kg/m³
Colour Options
Black standard, custom RAL on request
Lead Time
Confirmed with the quotation, from approved drawing and approved sample
Cell structure
Closed-cell
ASTM D1056 classification
Type, class and grade to your specification
Certifications
ISO 9001:2015 — certificate 09111526A, valid to 21 February 2027
Minimum Order
10,000 pieces per part number, per compound, or quoted against the part where geometry or tooling makes that unrealistic. Prototype and first-article lots sit outside the minimum.

Dimensional reference

To customer drawing
Max width
Cut width — to your drawing
Thickness
Free thickness — to your drawing
Run length
Cut length — to your drawing
Compressed height
What the seal becomes once the trim is clipped down
Gap range
Minimum and maximum joint gap the seal must close
Adhesive backing
Self-adhesive tape applied to your specification, or supplied plain

Available materials

Rubber Compound Options

Select the compound best suited to your operating environment and application requirements.

Compound

EPDM closed-cell

Ethylene Propylene Diene Monomer

Temperature range

−40 to +140 °C

For this part

Weather and ozone resistant, closed-cell so it does not wick water into the body cavity. The standard automotive trim-seal foam

Not sure? Send the medium, temperature and load

EPDM foam C-pillar garnish seal

CLASSIFICATION

ASTM D1056

type, class and grade to spec

Key advantages

Why Specifiers Choose Margo

  • Seals at almost no closing force

    A trim clip cannot generate the clamp a solid gasket needs. Closed-cell foam seals at a fraction of it — which is the whole reason this part is foam and not rubber.

  • Closed-cell, not open-cell

    Open-cell sponge wicks water straight through the joint it is meant to seal. On a pillar that drains into the body cavity, that is the difference between a seal and a leak path.

  • Specified by density, not durometer

    Foam is bought on density, compression force deflection and ASTM D1056 grade. Send the gap range and the closing force and we will specify the rest.

  • Moulded or die-cut

    Moulded to shape for a complex section, or die-cut from sponge sheet for a flat profile — with self-adhesive backing applied if you want it fitted in one action on the line.

Industries served

Global Applications

  • Automotive

    Trim and body sealing — pillars, garnishes, tailgates and lamp housings

  • Infrastructure

    Closed-cell foam gap seals for windows, doors, panels and access covers

  • Heavy Industry

    Enclosure, cabinet and access-panel gap seals on plant

Manufacturing process

From Compound to Certification

  1. Material compounding

    Polymer blending, additive integration and batch QC in our in-house lab. The blowing agent and its loading are set here, and they are what fix the density.

  2. Tool or die design

    Moulds for a shaped seal, cutting dies for a flat one, made in-house and held as a controlled record.

  3. Expansion and cure

    The compound is blown to the specified density and cured, then moulded to shape or calendered to sheet.

  4. Die-cutting or trimming

    Flat seals die-cut to profile from sheet; moulded seals flash-trimmed. Self-adhesive backing laminated at this stage if specified.

  5. Quality inspection

    Density, compression force deflection and dimensional check before release.

  6. Export packaging

    Industrial packing with documentation. ISPM-15 treated pallets where timber packaging is used. Foam is packed uncompressed; sponge stored under load takes a set that does not recover.

Quality assurance

Certified to International Standards

Every product leaves our facility with a documentation package — material test reports, dimensional inspection sheets and a certificate of conformance — giving traceability from raw material to finished part.

  • ISO 9001:2015 · Certificate 09111526A

    Integral Certification Ltd · Valid to 21 February 2027

    Scope: rubber moulded components — moulded seals on this part are covered

Certification detail

Production metrics

Since 2005
In operation
60+
Active clients
3–4 weeks from approved sample
Avg. lead time

Downloads

Technical Documentation

Cut profiles, density and compression data are issued per part on request, under NDA where required. Tell us the part and the format you work in — DXF or PDF for the profile — and we will send what we hold.

Request documentation

FAQ

Technical & Commercial Questions

Answers to the most common questions from engineering teams and procurement managers worldwide.

  • What is the minimum order quantity for this part?

    We supply in bulk. The minimum run is 10,000 pieces per part number, per compound, or quoted against the part where geometry or tooling makes that unrealistic. Prototype and first-article lots sit outside the minimum.

  • Can you match a competitor specification or reverse-engineer an existing part?

    Yes. Send a sample of the existing seal and we will measure density, section and compression behaviour, then match it. A used foam seal has taken a compression set and measures thinner than it was made — we specify to the original free thickness, not to the compressed sample.

  • What file formats do you accept for drawings?

    PDF, DWG and DXF. For a die-cut seal a flat profile with tolerances is all we need — a 3D model is not required. If you only have a sample, send the sample.

  • Do you provide material test reports with each shipment?

    Yes. Material test reports, dimensional inspection sheets and a certificate of conformance ship with every consignment. For sponge we report density and compression behaviour to ASTM D1056 rather than solid-rubber hardness.

  • What are your payment and delivery terms for international orders?

    TT and LC accepted, discussed per order. Ex-works Nashik or FOB Nhava Sheva. Commercial invoice, packing list and certificate of origin are issued with every consignment.

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Need this part quoted?

Send your profile or a sample seal, with the joint gap range. We confirm compound, density and cut profile, then quote against your annual quantity. We respond within 48 hours.

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