Neoprene (CR) rubber
Neoprene is the balanced all-rounder: useful weather, moderate-oil and flame resistance in one compound. Exonel moulds and extrudes it into seals, gaskets, pads and anti-vibration mounts for general industrial use.
Indicative ranges. The exact grade and hardness are matched to your application.
Six base polymers, compared.
Temperature range, hardness and resistance for typical commercial compounds of each polymer. Ratings run from A (excellent) to X (not suitable).
| Material | Temp range (°C) | Hardness (Shore A) | Oil | Fuel | Acid | Base | Water / steam | Ozone / weather |
|---|---|---|---|---|---|---|---|---|
| Silicone (VMQ) | −60 to +225 | 20 to 90 | C | D | C | C | B | A |
| EPDM | −45 to +150 | 30 to 90 | X | X | A | A | A | A |
| FKM (Viton-type) | −20 to +200 | 50 to 95 | A | A | A | C | C | A |
| NBR | −40 to +120 | 20 to 100 | A | B | C | B | B | D |
| Neoprene (CR) | −40 to +120 | 15 to 95 | B | C | C | B | B | B |
| SBR | −50 to +100 | 30 to 100 | X | X | C | B | B | D |
Key: A Excellent · B Good · C Fair · D Poor · X Not suitable
Figures are the typical range across commercial compounds. Special grades extend several of these limits: silicone to −117°C and +260°C, FKM to −40°C, NBR to −57°C. Figures are indicative and are confirmed for your application before tooling.
Sources: o-ring.info, Basic properties of elastomers; Mykin Inc, Rubber properties; Delta Rubber, Rubber material comparison guide; GMORS, VMQ silicone (silicone temperature range).
One balanced compound.
All-rounder
Weather, oil and flame resistance together. A practical default when no single property dominates.
Weather-resistant
Good ozone and weather ageing for outdoor parts.
Flame resistance
Inherent flame-retardant behaviour for safety-relevant parts.
Damping
Works well for pads and anti-vibration mounts.
Moulded and extruded.
Moulded
Gaskets, pads and anti-vibration mounts to drawing.
Extruded
Profiles and strips for general sealing.
Where it fits.
Industrial OEMs
General sealing and gasketing.
Anti-vibration
Pads and bonded mounts.
Outdoor parts
Weather seals where some oil contact is possible.
Where we would point you elsewhere.
Strong oils and aromatics
For aggressive oils, fuels or solvents use NBR or FKM.
Common questions
What is neoprene rubber good for?
Is neoprene flame resistant?
Does neoprene resist oil?
Need a neoprene part?
Send your RFQ
Tell us what you need. Fields marked * are required. Everything else helps us recommend the compound.
Exonel Industries makes custom moulded and extruded rubber components in Howrah, Kolkata, West Bengal, and supplies manufacturers across India. We work in six base polymers, Silicone, EPDM, FKM, NBR, Neoprene and SBR, formulated into hundreds of compounds. Compounding, tooling and production are done in-house. Send a drawing, a sample or a specification for a quote.
