- SHORE A
- ±5 pts against the specified hardness
- TENSILE
- Per compound datasheet, tested to ASTM D412
Extrusion Profiles · Made to order
Rear Windscreen Glazing Rubber — SUV Platform
Glazing rubber for the rear windscreen — holds the backlight in its aperture, seals it against water and wind noise, and lets the glass move as the body flexes. Extruded and corner-moulded to your drawing at our plant in Nashik. Dimensionally equivalent to the backlight glazing rubber used on Bolero-class SUV platforms. Supplied to your drawing or sample.
- HARDNESS
- 60–70 Shore A typical for a glazing channel — to your drawing
- TEMPERATURE
- −40 to +140 °C in EPDM
- THICKNESS
- Glass thickness and flange thickness
- WIDTH
- Cut length, to your drawing
- MADE TO ORDER
- EXTRUDED PROFILE
Product gallery
Visual Reference
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Cross section viewKeep the frame
- Max width
- Overall section width
- Thickness
- Glass groove and flange groove
- Run length
- Cut length per set
- Corners
- Moulded or vulcanised to your drawing
- Tolerance class
- ISO 3302-1, classes E1–E3 for extruded profile
Section drawing available on request under NDA. Send your glass thickness, flange thickness and aperture, or a length of the existing rubber, and we will return a dimensioned section for approval before the die is cut.
Technical specifications
Engineering Data
- Product Family
- Extrusion Profiles
- Material
- Compound dependent, see options below
- Hardness (Shore A)
- To your drawing — 60–70 Shore A typical
- Tensile Strength
- Per compound datasheet, tested to ASTM D412
- Elongation at Break
- Per compound datasheet, tested to ASTM D412
- Operating Temperature
- Compound dependent
- Compression Set
- Tested to ASTM D395 Method B
- Density
- Per compound datasheet
- Colour Options
- Black standard, custom RAL on request
- Lead Time
- Confirmed with the quotation, from approved section drawing
- 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
- Max width
- Overall section width
- Thickness
- Glass groove and flange groove
- Run length
- Cut length per set
- Corners
- Moulded or vulcanised to your drawing
- Tolerance class
- ISO 3302-1, classes E1–E3 for extruded profile
Available materials
Rubber Compound Options
Select the compound best suited to your operating environment and application requirements.
Compound
EPDM
Ethylene Propylene Diene Monomer
Temperature range
−40 to +140 °C
40–90 Shore A
For this part
The automotive glazing standard — ozone and UV resistant, flexible to −40 °C, and rated above the temperature a rear screen reaches in direct sun
Compound
Neoprene
Polychloroprene (CR)
Temperature range
−40 to +120 °C
40–90 Shore A
For this part
Good general weathering; specify where the position also sees oil
Compound
NBR
Nitrile Butadiene Rubber
Temperature range
−30 to +120 °C
40–90 Shore A
For this part
Specify only where oil or fuel contact is expected
Compound
AEM
Ethylene Acrylic Elastomer (Vamac)
Temperature range
−40 to +175 °C continuous to +160 °C
50–80 Shore A
For this part
Specify for unusually high glass-line temperatures
Compound
Silicone
Vinyl Methyl Silicone (VMQ)
Temperature range
−60 to +220 °C
30–80 Shore A
For this part
Widest range, but low tear strength for a channel that is stretched over glass during fitting
Compound
SBR
Styrene Butadiene Rubber
Temperature range
−30 to +100 °C
40–90 Shore A
For this part
Poor ozone resistance — crazes and cracks in direct sun.
Compound
Natural Rubber
Polyisoprene (NR)
Temperature range
−20 to +90 °C
30–80 Shore A
For this part
Perishes under UV and ozone; also below the temperature a rear screen reaches
Compound
FKM
Fluoroelastomer (Viton)
Temperature range
−20 to +250 °C continuous to +200 °C
60–90 Shore A
For this part
Stops at −20 °C — the wrong end of the range for exterior glazing, at several times the cost
Not sure? Send the medium, temperature and load
TOLERANCE
ISO 3302-1
class E1–E3, extruded
Key advantages
Why Specifiers Choose Margo
Ozone is what kills a window rubber
Not sunlight and not water — ozone attacking a rubber held in permanent tension. EPDM resists it; NBR, SBR and natural rubber do not.
Sized to the glass and the flange
The seal is interference between glass, rubber and aperture flange. Send all three, or a length of the old rubber — a channel cut for 4 mm glass leaks on 3.8 mm.
Lets the body move
Rubber-glazed glass floats in its channel instead of becoming a structural member — which is why ladder-frame vehicles use it. The rubber has to stay compliant cold to keep doing that job.
Die cut in-house, corners moulded
Section die designed and cut here, profile extruded to length, corners moulded or vulcanised to your drawing. No external toolmaker and no split responsibility for the joint.
Industries served
Global Applications
Nepal
the largest export market for the Bolero and the biggest parked fleet outside India
Sri Lanka and Bhutan
a further fifth of Bolero exports between them
East and Southern Africa
Kenya, Uganda, Tanzania, Mozambique and Namibia
Automotive glazing
rear screens, quarter lights and fixed glazing on utility vehicles
Plant and agricultural cab glazing
the same profile seals a tractor or excavator cab
Bus and coach glazing
high-volume fixed glazing on the same extruded profile
Manufacturing process
From Compound to Certification
Material compounding
Polymer blending, additive integration and batch QC in our in-house lab. The weathering package is set here — a glazing profile sits in direct sunlight for the life of the vehicle.
Die design & cutting
Extrusion dies designed and cut in-house and held as a controlled record.
Extrusion
Continuous profile at controlled temperature and line speed.
Cure, cut and corner-mould
Continuous vulcanisation, cut to length, corners moulded or vulcanised into a closed frame.
Quality inspection
Section profile check against the drawing, hardness testing and batch sampling before release.
Export packaging
Coiled or cut-length packing with documentation. Glazing profiles are coiled to a minimum diameter and never folded — a kink will not seat against the glass. ISPM-15 treated pallets where timber packaging is used.
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 — corner mouldings on this part are covered
Production metrics
- Since 2005
- In operation
- 60+
- Active clients
- 3–4 weeks from approved sample
- Avg. lead time
Downloads
Technical Documentation
The section drawing is the specification for a glazing profile — we issue it per part on request, under NDA where required. Tell us the part and the format you work in, PDF, DWG or DXF, and we will send what we hold.
Request the section drawingFAQ
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. For extruded profile the minimum is quoted against the die and your annual metreage rather than a piece count; for moulded parts it is 10,000 pieces per part number, per compound. Prototype and first-article lengths sit outside the minimum.
Can you match a competitor specification or reverse-engineer an existing part?
Yes. Send a 150 mm length of the existing rubber and we will section it, produce a dimensioned drawing and confirm compound before the die is cut. An old glazing rubber has taken a set and shrunk — we dimension to the original section, not to the aged sample.
What file formats do you accept for drawings?
PDF, DWG and DXF for the section. A dimensioned cross-section with tolerances is all we need to quote a profile — a 3D model is not required. If you only have a length of the old rubber, send that.
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. Hardness, tensile to ASTM D412 and compression set to ASTM D395 Method B are tested in-house.
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. Profile ships coiled or cut to length, as specified.
Same compound
Other parts we mould in the same compounds
- Internal Fit Grommets — Single-Bore, Panel-Retained · EPDM, Neoprene
- Tailgate Switch Boot — Sealed Push-Button Cover · EPDM, Neoprene
- 3 Pin Hole Pad — Three-Way Electrical Pass-Through Grommet · EPDM, Neoprene
- Anti-Slip Side Step Pad · EPDM, Neoprene
- Foam Gaskets — Closed-Cell Sponge for Low-Closing-Force Seals · EPDM, Neoprene
- A/C Extractor Damper Weight · EPDM, Neoprene
Need this part quoted?
Send your section drawing or a length of the existing rubber. We confirm compound, hardness and section, then quote against your annual metreage. We respond within 48 hours.