SBR O-Rings » Styrene-butadiene Orings

Styrene-Butadiene rubber (SBR) is a copolymer of styrene and butadiene. SBR o-rings are commonly used in hydraulic brakes brake systems due to excellent resistance to hydraulic fluids, brake fluids and water. The SBR o-ring is commonly referred to as a styrene-butadiene o-ring or SBR o-rings. Columbia offers SBR o-rings as a speciality oring compound.

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SBR O-Rings are speciality o-rings and only available as a special order. Please submit an RFQ for pricing, and availability.
SBR O-rings
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SBR Orings » Chemical Compatibility Overview

SBR
Chemical Resistance
Very
Good
Good
Fair
Poor
Acetone       4
Air     3  
Alcohols   2    
Brake Fluids, Non-Petroleum Based     3  
Diester Oils       4
Glycols 1      
Ketones     3  
Mineral Oil       4
Oxidation   2    
Petroleum Oils (Below 250ºF)       4
Silicone Fluids 1      
Steam to 500ºF       4
Transmission Fluids (Type A)       4

SBR Compound » Chemical Compatibility Lookup

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*Due to the number of interacting forces, it is STRONGLY RECOMMENDED THAT YOUR ELASTOMER SELECTION BE RIGOROUSLY TESTED IN THE ACTUAL APPLICATION, performance assumptions must be checked so that you are certain that all variables have been carefully considered.

SBR O-Rings » Physical Properties Overview

SBR
Physical Properties
Very
Good
Good
Fair
Poor
Abrasion Resistance   2    
Acid Resistance     3  
Chemical Resistance     3  
Cold Resistance   2    
Compression Set Resistance   2    
Dynamic Properties   2    
Electrical Properties   2    
Elongation   2    
Flame Resistance       4
Heat Resistance     3  
Impermeability     3  
Oil Resistance       4
Ozone Resistance       4
Tear Resistance     3  
Tensile Strength   2    
Water / Steam Resistance     3  
Weather Resistance     3  
*The chemical compatibility and physical properties are listed as general characteristics of the SBR o-ring compound. Speciality compounds can be derived to enhance or modify the performance to meet o-ring's application needs.

SBR Compound » Compound Attributes

Chemical Description Styrene-butadiene rubber
Abbreviations (ASTM 1418) SBR
ISO / DIN SBR
Other Trade Names SBR
ASTM D2000 Designations AA, BA
Low Temperature Range -50°F / -46°C
High Temperature Range 212°F / 100°C
*The SBR o-ring compound attributes are used to outline the basic properties. SBR o-ring attributes can be adjusted by modifying the basic compound.
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Custom SBR O-Rings

SBR O-rings can be made in custom sizes to fit any application specific needs. Our engineering staff can review your application and design a solution that satisfies those requirements. You can find assistance with o-ring gland design here. You can find assistance with o-ring design here. To request a quote on your o-ring specifications please submit a RFQ here.

Standard AS568 SBR O-Rings

All SBR AS568 o-rings have three measurement types. First, a nominal inch reference, then actual inch sizes, and finally the metric size displayed in millimeters. SBR o-rings are stocked and cataloged by their AS568 number. This number references the Aerospace Standard 568 (AS 568) which was published by the SAE (Society of Automotive Engineers). Each o-ring is assigned a dash number which correlates directly to an exact o-ring size. You may view a complete chart of these o-ring sizes here.

Standard Metric SBR O-Rings

SBR O-rings can be made in several metric sizes. SBR metric O-rings are cataloged by their cross section and inside diameter. Columbia references the metric SBR o-rings by the compound number and the cross section along with the inside diameter. You may view a complete chart of the metric o-ring sizes here.
O-ring Measurement Chart
SBR Oring Geometry
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