Styrene Butadiene

Also known as Buna S, or GR-S (Government Rubber-Styrene), Styrene Butadiene was the elastomer substituted for Natural Rubber during World War II. Compounded properties are similar to those of Natural Rubber with generally better abrasion resistance, but with poorer fatigue resistance.


Trade Name(s):

Too Many to list

ASTM D1418 Designation

SBR

Standard Colour

Black

Description

Also known as Buna S, or GR-S (Government Rubber-Styrene), Styrene Butadiene was the elastomer substituted for Natural Rubber during World War II. Compounded properties are similar to those of Natural Rubber with generally better abrasion resistance, but with poorer fatigue resistance.

Key Uses(S):

Isolation dampeners.

Temperature Range:

Standard Compound: -45°C (-50°F) to 100°C (212°F) – Dry Heat Only

Hardness (Shore A):

40 TO 90

Features

The main use for Styrene Butadiene today is in the manufacture of automobile tyres.

Limitations

SBR is not recommended for exposure to petroleum oils, most hydrocarbons, strong acids, or ozone. It is very weak unless reinforcing fillers are incorporated.

This material is seldom used in modern sealing applications. It has been replaced by better performing materials.

Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals (UK) Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.

 

ES REF
Colour
Temp Range
Shore
Notes
Data Sheet
SBR70 BLACK -45°C to 100°C – DRY HEAT ONLY 70

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