SBR | CutWise

SBR (Styrene-Butadiene Rubber)

Rubber

SBR, or styrene-butadiene rubber, is a synthetic rubber known for its excellent wear resistance and good mechanical properties. The material is a cost-effective alternative to natural rubber and is widely used in various industrial sectors, including automotive, mechanical engineering, and general industry. SBR offers a good balance between flexibility, tensile strength, and durability, making it suitable for a wide range of applications.
Well-known trade names for SBR include Buna-S, Europrene®, and Krynac®. These grades are widely used worldwide in products such as tires, seals, hoses, and flooring.

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Properties of SBR

Excellent wear resistance and mechanical strength
Good flexibility and elasticity at low temperatures
Cost-effective alternative to natural rubber
Easy to process: good for gluing, welding, and forming
Moderate resistance to ozone, UV radiation, and weather
Limited chemical resistance; not suitable for oils and fuels
Available in various hardnesses (Shore A 30–90) and colors
Not suitable for long-term exposure to sunlight or ozone
Versatile for various industrial applications

Thanks to these properties, SBR is a reliable choice for applications requiring wear resistance and mechanical performance.

Datasheet Title

Technical properties of SBR

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Product information and operations

Thickness	Dimensions	Color
1 mm	3000x1400 mm	Zwart
1.5 mm	3000x1400 mm	Zwart
2 mm	3000x1400 mm	Zwart
3 mm	3000x1400 mm	Zwart
4 mm	3000x1400 mm	Zwart
5 mm	3000x1400 mm	Zwart
6 mm	3000x1400 mm	Zwart
8 mm	3000x1400 mm	Zwart
10 mm	3000x1400 mm	Zwart
12 mm	3000x1400 mm	Zwart
15 mm	3000x1400 mm	Zwart
20 mm	3000x1400 mm	Zwart

Technical properties

Algemeen

Dichtheid 0,94–1,00 g/cm³

Kleur Zwart / rood / op aanvraag

Wateropname < 0,5 %

Temperatuurbereik

Gebruikstemperatuur minimaal -40 °C

Gebruikstemperatuur maximaal +100 °C

Mechanisch

Treksterkte 10–25 MPa

Rek bij breuk 250–600 %

Hardheid (Shore A) 30–90

Compressieset (22h/70 °C) 20–35 %

Elektrische eigenschappen

Diëlektrische sterkte 20–30 kV/mm

Volumeweerstand 10¹³–10¹⁵ Ω·cm

Diëlektrische constante (1MHz) 4–6

Thermische eigenschappen

Glasovergangstemperatuur -50 °C

Max. gebruikstemperatuur +100 °C

Lineaire uitzettingscoëfficiënt 150·10⁻⁶/K

Warmtegeleidingscoëfficiënt 0,2–0,3 W/m·K

Applications of SBR

Tires for cars, trucks, and agricultural vehicles

Seals and gaskets in various industrial applications

Hoses for water, air, and non-oil fluids

Flooring and mats in industrial and commercial settings

Conveyor belts and rollers in production and processing lines

Shock absorbers and vibration isolators in machinery

Adhesives and sealants for general-purpose use

Jacketing for cables and electrical components

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Frequently Asked Questions about SBR

What are the main advantages of SBR compared to natural rubber?

SBR offers better abrasion resistance, more consistent quality, and lower cost than natural rubber; it also ages more predictably indoors.

Is SBR suitable for applications with oils and fuels?

No, SBR is not resistant to oils, greases, or fuels. For those environments, NBR (nitrile rubber) is recommended.

Can SBR be used outdoors?

Standard SBR has limited ozone and UV resistance, so it requires additional protection for long-term outdoor use.

How does SBR perform at low temperatures?

SBR remains flexible and elastic down to about –40 °C, making it suitable for cold-environment applications.

Is SBR food-safe?

Standard SBR is not food-grade; however, special FDA- and EU-compliant grades are available for food-contact applications.

Can SBR be laser-cut or machined?

Yes, SBR can be both laser-cut and CNC-milled, depending on the precision requirements.

How does SBR compare to other rubbers like EPDM or NBR?

SBR excels in abrasion resistance and mechanical strength but offers lower resistance to ozone, UV, and oils than EPDM or NBR.

Is SBR recyclable?

Yes, SBR is recyclable, though recycling options may vary by region.

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Material HB Title

SBR CUTTING

SBR (Styrene-Butadiene Rubber)

Properties of SBR