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Lion Elastomers SBR 1789

SBR 1789 is an environmentally friendly version of SBR 1712 replacing aromatic extender oil with a non-hazardous RAE oil. SBR 1789 contains a higher level of bound styrene. It was developed for tire applications.

Polymer Name: Emulsion Styrene Butadiene Rubber (ESBR)

Additives Included: Antioxidant

Features: Cold Polymerized, Oil Extended

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Knowde Enhanced TDS

Identification & Functionality

Additives Included
Technologies

Features & Benefits

Unique Features
  • Cold polymerized styrene-butadiene elastomer
  • Higher bound styrene & RAE oil extended

Applications & Uses

Applications
  • Passenger & heavy-service treads
  • Retread rubbers and bicycle tires
Usage Guidelines

Antioxidant is added to this polymer to provide protection during manufacture and storage. The end user’s process may require additional antioxidant protection.

Properties

Physical Form
Emulsifying System
Mixed acid
Typical Properties
ValueUnitsTest Method / Conditions
Ash Contentmax. 0.7wt %
Bound Styrene39-41wt %
Mooney Viscosity47-57MML 1+4 (100˚C)
Oil Content37.5parts – RAE
Organic Acid Content3.5-5.9wt %
Polymer100parts
Soap Content0.5wt %
Specific Gravity0.95g/cc.ASTM D-792
Volatile Matter0.75wt %ZS 1008K
Rheometric Properties
ValueUnitsTest Method / Conditions
MH10.3-14.3lbf-inMDR 2000 Rheometer
MH11.7-16.2dN-mMDR 2000 Rheometer
ML1.4-3.6dN-mMDR 2000 Rheometer
ML1.2-3.2dN-mMDR 2000 Rheometer
t’ 507.2-11.2minutesMDR 2000 Rheometer
t’ 9013.7-18.7minutesMDR 2000 Rheometer
ts 13.2-5.2minutesMDR 2000 Rheometer
Additional Information
ValueUnitsTest Method / Conditions
CoagulantAcid or Salt Acid
StabilizerStaining

Regulatory & Compliance

Packaging & Availability

Packaging Type