Description

Styrene Butadiene Rubber (SBR) is a synthetic rubber copolymer of styrene and butadiene, known for its excellent abrasion resistance, resilience, and processability. This versatile elastomer is a critical raw material for industries requiring durable, cost-effective rubber products with good mechanical properties. Key sectors that rely on SBR include tire manufacturing, automotive parts, footwear, conveyor belts, and various molded goods.

Application

• Tire Manufacturing: The primary application, used extensively in tire treads, sidewalls, and carcasses for its balance of wear resistance, traction, and low heat buildup.
• Automotive Components: Used in the production of hoses, seals, gaskets, belts, and vibration-damping mounts.
• Footwear: A key material for shoe soles and heels due to its good abrasion resistance and flexibility.
• Industrial Rubber Goods: Essential for manufacturing conveyor belts, transmission belts, rollers, and industrial hoses.
• Adhesives & Sealants: Serves as a base polymer in pressure-sensitive adhesives, construction sealants, and caulks.
• Molded & Extruded Goods: Used for a wide range of consumer and industrial products like flooring, mats, and sporting goods.
• Polymer Modification: Employed as an impact modifier for plastics like polystyrene (HIPS) and asphalt for road paving.

Basic Information

Product Name	Styrene Butadiene Rubber
CAS No.	9003-55-8
Molecular Formula	(C8H8·C4H6)x
Molecular Weight	Varies (Polymer)
Synonyms	SBR; Styrene-Butadiene Copolymer; Buna S; GR-S (Government Rubber-Styrene); Butadiene-Styrene Rubber; Styrene Butadiene; SB Rubber; Poly(styrene-co-butadiene); ESBR (Emulsion SBR); SSBR (Solution SBR)
EINECS	202-849-0

Quality Control

Our Styrene Butadiene Rubber is manufactured under strict quality management systems. Each batch is tested against rigorous internal specifications to ensure consistent performance in key parameters such as styrene content, Mooney viscosity, and mechanical properties. Certificates of Analysis (COA) are available upon request, and production can be aligned with relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from heat sources and direct sunlight. Recommended storage temperature is between 15-25°C. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light amber bale/crumbs
Styrene Content	20 - 25%
Mooney Viscosity (ML 1+4 @ 100°C)	45 - 55
Volatile Matter	≤ 0.75%
Ash Content	≤ 1.0%
Organic Acid	4.50 - 6.50%
Soap Content	≤ 0.50%
Bound Styrene (by IR)	22.0 - 24.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.