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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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KRALEX® 1723

Technical Datasheet | Supplied by Synthos Group
KRALEX® 1723 by Synthos Group is a styrene-butadiene rubber (SBR) type grade stabilized with a staining antioxidant. It is produced by cold emulsion copolymerization based on soaps of rosin & fatty acids and coagulated by acid and synthetic coagulant. It is free of mechanical impurities. Recommended for rubber compounds used in the production of car tyres including tyre re-treading, conveyor belts and technical rubber articles. Shelf life of KRALEX® 1723 is 12 months.
Product Type
SBR (Styrene Butadiene Rubber)
Product Status
Applications/ Recommended for
  • Automotive > Tyres and inner tubes
  • Engineering / manufacturing > Belts, conveyors

KRALEX® 1723 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Volatile Matters
< 0.75 %wt.
( )
ASTM D5668
Mooney Viscosity
45 - 55 ML
(ML 1+4 (100°C) – massed)
ASTM D1646
Bonded Styrene Content
22.5 - 24.5 %wt.
( )
ASTM D5775
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