VMQ Silicone Edge Trim Seal

Every high-end appliance needs a clean edge — one that protects exposed sheet metal while absorbing the vibrations and thermal shifts of daily use. This silicone edge trim seal delivers both: a precision-extruded U-channel or D-profile that clips securely onto cabinet flanges, oven panel edges, and refrigerator door rims without adhesive. Available in solid or…

Specifications

Product Type:

Extruded Trim Seal (U-Channel / D-Profile)

Base Polymer:

VMQ (Vinyl Methyl Silicone Rubber)

Structure:

Solid or Closed-Cell Foam; Co-extruded solid + foam composite available

Color: 

Translucent white (standard); Custom colors available (RAL, Pantone match)

Surface Finish:

Smooth / Matte / Lightly textured per spec

Standards & Compliance: 

Hardness:

Solid: 50 ± 5 Shore A (standard); Range 30–80 Shore A customizable. Foam: 15–35 Shore A equivalent

Tensile Strength: 

Solid: ≥ 20 kN/m; Foam: ≥ 8 kN/m

Elongation at Break:

Solid: ≥ 300%; Foam: ≥ 150%

Tear Strength:

Solid: ≥ 20 kN/m; Foam: ≥ 8 kN/m

Recommended Service Temperature:

–60°C to +200°C (intermittent to +230°C)

Hot Air Aging:

200°C × 72h: Hardness change ≤ ±5 Shore A; tensile retention ≥ 80%

Low‑Temperature Brittleness: 

≤ –60°C

Typical Applications:

Oven panel trim, dishwasher door edge seal, refrigerator cabinet flange gasket, washer/dryer lid edge guard, range hood panel edging

Description:

Most organic rubbers begin to harden and crack at the temperatures that ovens and dishwashers generate during normal operation. VMQ silicone doesn’t. Its polymer backbone is built on alternating silicon and oxygen atoms — a chain that absorbs neither UV photons nor thermal energy the way carbon-based rubbers do. That molecular stability is why a silicone edge trim stays soft at 200°C and still bounces back after years clamped onto a panel flange at sub-zero storage temperatures.

For appliance OEMs, this translates into a single material that handles the heat zone behind an oven door, the humid interior of a dishwasher, and the cold environment of a refrigerator — without the degradation, staining, or odor issues that plague EPDM or TPE alternatives in the same roles.

Typical Industry Applications

Proven performance across demanding manufacturing environments.

Industry Typical Use Cases
Home Appliances Oven panel edge trim, dishwasher door flange seal, refrigerator cabinet edge gasket, washer/dryer lid edge guard, microwave frame trim
Commercial Kitchen Equipment Industrial oven panel edging, steam cabinet door trim, commercial refrigeration unit flange seal
HVAC & Ventilation Sheet metal duct edge protection, air handling unit panel trim
Electronics & Electrical Enclosures Control panel edge seal, switchboard cabinet flange trim, instrument housing edge guard
Lighting & LED LED fixture housing edge protection, luminaire panel trim, diffuser frame seal
Construction & Architecture Aluminum curtain wall panel edge trim, glass partition frame edging, decorative panel trim

Chemical Resistance Table:

Chemical / Medium Resistance Notes (optional)
Water (hot/cold) ✅ Excellent No swelling or degradation to 100°C
Steam (low pressure) ✅ Excellent Stable under repeated dishwasher-cycle steam exposure
Dilute acids (acetic, citric) ✅ Excellent Suitable for food-adjacent contact
Dilute alkalis (NaOH ≤10%) ✅ Excellent Withstands common kitchen cleaners
UV / Ozone ✅ Excellent No cracking or yellowing over extended outdoor exposure
Silicone oils & greases ✅ Excellent Negligible swell
Ethanol / Isopropanol ✓ Good Minor swell; full recovery on drying
Mineral oils ⚠ Limited Moderate swelling (15–30%) over prolonged immersion
Petroleum fuels (gasoline, diesel) ✗ Not recommended Significant swelling and strength loss
Aromatic solvents (toluene, xylene) ✗ Not recommended Severe swell; avoid contact
Ketones (acetone, MEK) ⚠ Limited Noticeable swell; short-term exposure only
Concentrated acids (H₂SO₄, HNO₃) ✗ Not recommended Chemical degradation of siloxane backbone
Hydrogen peroxide (≤3%) ✓ Good Acceptable for sanitation wipe-down
Ammonia-based cleaners ✓ Good Standard household concentrations acceptable

In-House Quality Assurance & Testing:

At Micune Rubber, batch-to-batch consistency is guaranteed through our ISO-9001 certified Quality Management System. Every rubber compound and custom extrusion undergoes rigorous evaluation in our dedicated testing laboratory before shipment. We utilise industry-standard baseline testing, including Mooney Viscometers to measure compound viscosity and Torque Rheometers to verify exact vulcanisation characteristics. This ensures every material formulation strictly adheres to your required specifications and processing parameters.

Mooney Viscometer

Mooney Viscometer

abrasive testing machine

Abrasive Testing Machine

Burn-in Chamber

Burn-in Chamber

Torque Rheometer

Torque-Rheometer

RFQ:

Standard U-channel profiles are available with opening widths from 1.0 mm to 4.0 mm, covering common sheet metal flange thicknesses of 0.8–3.0 mm. Cross-sectional tolerances are held to ±0.15 mm on critical gripping dimensions. For non-standard flange geometries, provide a drawing or sample and the engineering team will propose a matched profile.

All silicone edge trim compounds are SGS-tested for full EU RoHS and REACH compliance, with PAHs screening included — every restricted substance returned ND (Not Detected). Pre-order copies of current SGS test reports are available on request during the quotation stage. Food-contact compliance to GB 4806.16-2025 is also documented for applicable silicone grades.

Color matching to RAL or Pantone references is standard; hardness is adjustable from 30 to 80 Shore A for solid profiles and 15–35 Shore A equivalent for foam. Custom extrusion die tooling typically requires a one-time tooling fee with a minimum initial order of 500 meters, though this varies by profile complexity.

First-article samples from new extrusion tooling are normally delivered within 12–18 working days after drawing approval, including die fabrication and trial extrusion. If the profile matches an existing die geometry, cut samples can ship within 5–7 working days. Sample quantities up to 20 meters are provided free of charge for qualification testing.

Production MOQ is typically 1,000 meters per profile per color, though smaller initial orders of 500 meters can be accommodated for new-product qualification. Goods are packed in coils or straight lengths per buyer specification, palletized for container loading, and shipped FOB Guangzhou or CIF to the destination port. Standard production lead time runs 15–25 working days depending on order volume.

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