Songhan Plastic Technology Co.,Ltd.

KKPC KOSYN 1502W Styrene Butadiene Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Korea Kumho Petrochemical Co., Ltd.
Trade Name KOSYN
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF KKPC KOSYN 1502W Styrene Butadiene Rubber.pdf
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Material Notes:
Styrene Butadiene RubberCharacteristics: KOSYN SBR, a useful synthetic rubber, is a copolymer made from butadiene and styrene by cold emulsion polymerization. It has superior abrasion resistance and heat resistance in comparison with natural rubber, as well as widely useful physical properties of easy vulcanization and stable scorch properties. The products of KOSYN SBR are classified according to the emulsifying agent and stabilizer used in manufacturing process.Applications: Tires, footwear, rubber hose, auto equipment and other rubber products for industrial use.Additional Notes: Bound Styrene: 23.5%Stabilizer: Non-StainingEmulsifier: Mixed soap of rosin acid and fatty acidCoagulant: Salt-AcidCompound Properties: SRB 100, ZnO 3, S/A 1, HAF Black (IRB#7) 50, Accelerator TBBS1, Sulfur 1.75, Total: 156.75Vulcanization: 145°C *35 m., Press VulcanizationThis product is so sensitive to sunlight and humidity that it can be tarnished and caused deterioration of quality if exposed. It is recommended to store it in cool and shady area lest it should be exposed to direct sunlight. Do not expose to incompatible materials or contaminants.Data provided by Korea Kumho Petrochemical Co., Ltd.
Physical Properties Metric English Comments
Density 0.940 g/cc
0.0340 lb/in³
Not Compounded
Mooney Viscosity 52

@Temperature 100 °C

@Temperature 212 °F
Raw; ML1+4

@Temperature 100 °C

@Temperature 212 °F
Compounded; ML1+4
Mechanical Properties Metric English Comments
Hardness, Shore A 71
Tensile Strength, Ultimate 29.1 MPa
4220 psi
Elongation at Break 440 %
440 %
300% Modulus 0.0186 GPa
2.70 ksi
Rebound 55 %
55 %
ASTM Test, Vulcanized
Flex Crack Resistance 4000
145°C / 35 min., Press Vulcanization
Tear Strength 50.0 kN/m
286 pli
B-type, Vulcanized
Abrasion 0.20
De Mattia Flexometer: Cut Growth 2mm --> 15mm, Flexes
Compression Set 50 %

@Temperature 100 °C
50 %

@Temperature 212 °F
70 hrs, 25% def, Vulcanized
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