Executive Summary

Rubber sheets (elastomeric sheets) are available in a wide range of compounds — nitrile (NBR), EPDM, FKM (Viton®), silicone, neoprene (CR), SBR and specialized blends. They serve as gasketing, lining, vibration pads and sealing materials. This page provides material guidance, selection tips, typical specifications, handling and installation best practices for procurement, engineering and maintenance teams.

What is a Rubber Sheet?

A rubber sheet is a flat elastomeric material manufactured by calendering, extrusion or molding, then vulcanized to develop mechanical properties. Rubber sheets can be solid, sponge/foam, or composite (rubber bonded to fabric/metal). They are chosen based on required hardness, compression set, chemical resistance, temperature range and mechanical strength.

Rubber Sheet Classification — By Compound, Structure & Application

Common Compounds

  • NBR (Nitrile) — excellent oil & fuel resistance
  • EPDM — excellent weather, ozone & steam resistance
  • FKM / Viton® — premium chemical & high-temperature resistance
  • Silicone — outstanding high/low temperature flexibility & hygiene
  • CR (Neoprene) — good weather/ozone and moderate oil resistance
  • SBR — general-purpose rubber, good abrasion resistance

By Structure

  • Solid (dense) rubber sheet
  • Sponge / cellular rubber (vibration isolation)
  • Reinforced (rubber bonded to fabric / metal foil)
  • Self-adhesive backed sheets for easy application

By Application

  • Gaskets & flange sealing
  • Tank & vessel linings
  • Vibration pads & shock mounts
  • Pump diaphragms and valve seats
  • Insulation & weatherproofing

Selection Guide — How to Choose the Right Rubber Sheet

  1. Identify media exposure: oils, fuels, solvents, acids, alkalis, steam, water — choose NBR/FKM/PTFE-faced accordingly.
  2. Temperature range: select compound to cover continuous and peak temperatures (e.g., silicone for high temp, EPDM for hot water/steam).
  3. Hardness (Shore A): softer sheets compress better for low bolt load flanges; harder sheets resist extrusion and mechanical wear.
  4. Compression set & recovery: for dynamic joints prefer low compression set compounds.
  5. Abrasion & wear: SBR or reinforced rubber for abrasive environments; consider fabric reinforcement.
  6. Regulatory needs: for food, pharma use FDA-compliant grades (silicone, special NBR).

Quick tip: When in doubt request a compatibility test (soak / swell / tensile) in your actual service media before large procurement.

Technical Parameters & Common Specifications

Reference typical material ranges.
Compound Temp Range (°C) Typical Hardness (Shore A) Compression Set (24h @ 70°C) Key Strengths
NBR (Nitrile) -40 → +120 60 — 90 20% — 40% Excellent oil & fuel resistance
EPDM -50 → +150 60 — 90 15% — 35% Weather, ozone, steam & hot water resistant
FKM / Viton® -20 → +200 70 — 90 10% — 25% Superior chemical & high-temp performance
Silicone -60 → +200 30 — 80 30% — 60% Excellent thermal range & hygiene
CR (Neoprene) -40 → +120 60 — 80 20% — 45% Good ozone/weathering and moderate oil resistance
SBR -40 → +100 60 — 90 25% — 50% General purpose, abrasion resistance

Common Sheet Sizes & Thicknesses

Sheet Size (mm) Thickness Options (mm) Typical Use
1000 × 1000 1 / 2 / 3 / 4 / 5 General gasket & lining
1500 × 1500 3 / 5 / 8 / 10 Large covers, linings
2000 × 1000 5 / 10 / 15 / 20 (sheet) Heavy-duty pads & anti-vibration mounts

Datasheets & Technical Documents

Download compound datasheets, chemical resistance tables, cutting templates and installation guidance.

Cutting, Bonding & Handling Recommendations

  1. Cutting: use rotary die-cut, CNC routing, waterjet (for composites) or manual shears for thin sheets. Avoid overheating during machining.
  2. Bonding & Adhesives: select adhesives formulated for the compound (e.g., neoprene-based contact adhesives for NBR/CR; silicone adhesives for silicone sheets require special primers).
  3. Vulcanization & cold bonding: some repairs require vulcanization — follow supplier guidance or use factory-prepared bonded assemblies.
  4. Storage: store flat in dry, dark conditions away from ozone/UV and solvents to prevent ageing.
  5. Cleaning: clean flange faces before installation; avoid solvent residues that may swell some rubbers.
Industrial Rubber Sheets
Typical workflow for rubber sheet cutting, bonding and installation.

Application Industries & Case Studies

  • Automotive — seals, gaskets, vibration mounts
  • Oil & Gas — hydrocarbon-resistant NBR gaskets
  • Water & Wastewater — EPDM linings and seals
  • Food & Beverage & Pharma — FDA-grade silicone sheets
  • Mining & Construction — abrasion-resistant SBR & reinforced sheets

Case Study — Pump Seal Upgrade

Problem: Frequent leakage in process pump using poor quality gaskets. Solution: Replaced generic cut gaskets with nitrile (NBR) bonded rubber gaskets, optimized thickness and used compatible contact adhesive. Result: Reduced leakage events by 85% and extended maintenance intervals.

Performance Comparison & Material Selection Matrix

Property NBR EPDM FKM Silicone Neoprene (CR)
Oil / hydrocarbon resistance Excellent Poor Very Good Poor Moderate
Steam / hot water Moderate Excellent Good Good Moderate
Weather / ozone Fair Excellent Good Excellent Good
High temperature Up to ~120°C Up to ~150°C Up to ~200°C Up to ~200°C Up to ~120°C
Typical applications Hydraulic seals, gaskets Water systems, outdoor seals Fuel systems, chemical service Food & pharma, high-temp seals General purpose, outdoor use

Common Failures & Troubleshooting

Swelling or softening of gasket
Cause: Incompatible chemical exposure. Action: Check chemical compatibility chart; replace with compatible compound (e.g., FKM for hydrocarbons).
Rapid compression set (loss of seal)
Cause: High temperature or low-quality compound. Action: Use low compression-set compound or increase hardness/thickness.
Cracking or brittleness
Cause: Ozone/UV ageing or thermal degradation. Action: Replace with ozone-resistant compound (EPDM) and protect from UV exposure.
Excessive extrusion at flange
Cause: Low hardness or insufficient confinement. Action: increase material hardness or add metal reinforcement/facing.

FAQ — For Purchasing, Engineering & Maintenance

Q: Which rubber is best for oil & fuel service?A: Nitrile (NBR) and FKM (Viton®) are typically best for oil and hydrocarbon services. For high temperatures or aggressive chemicals, FKM is preferred.
Q: Can silicone sheets be used for food contact?A: Yes — FDA / EU-compliant silicone grades are widely used in food and pharmaceutical industries. Verify certification with the supplier.
Q: How to obtain a quick quote?A: Provide compound (or application), sheet size & thickness, quantity, and service conditions (T, media). If possible attach drawing or sample for accurate pricing.

Ready to specify the right rubber sheet for your application?

Contact our technical team for sample cuts, compatibility testing and bonded gasket assemblies.
Rubber Sheet Technical Data Sheet (PDF) Request quote Contact technical team
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