SBR rubber
SBR gives tough abrasion and impact resistance at low cost, and is the established synthetic for rubber bushings and vibration isolators. Exonel moulds it into gaskets, pads, bushes and anti-vibration mounts.
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).
Tough and economical.
Abrasion and impact
Hard-wearing for general-purpose mechanical parts.
Bushings and isolators
The established synthetic for rubber bushes and vibration mounts.
Value
Good mechanical performance at low cost.
Moulded.
Moulded
Gaskets, pads, bushes and anti-vibration mounts to drawing.
Where it fits.
Anti-vibration
Bushes, pads and isolators.
General gaskets
Cost-sensitive sealing where oil and ozone are not factors.
Industrial OEMs
Hard-wearing general-purpose parts.
Where we would point you elsewhere.
Oils, ozone and outdoors
SBR is not suitable for oil contact and ages poorly in ozone and weather. Use NBR or EPDM.
Common questions
What is SBR rubber used for?
Is SBR oil resistant?
Is SBR suitable outdoors?
Need an SBR part?
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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.
