Chemical name: Styrene Butadiene Rubber (SBR)
Main raw materials: Butadiene and Styrene, produced by emulsion polymerization
Form: Granules or bales, usually pale colored solid
Main applications: Tires, conveyor belts, footwear, various molded parts
As a chemical producer, it helps to spell out the basics every time the MSDS comes up. Our teams have seen how the right ID heads off confusion on the floor or in the lab. We label and package according to global rules so that even retail-level users recognize SBR at a glance.
Hazard classification: SBR is generally regarded as non-hazardous but can contain small proportions of residual monomers like styrene or butadiene, classified as hazardous to health
Physical hazards: SBR is not classified as flammable under normal storage but can combust if exposed to high heat sources
Main health risks: Inhalation of rubber dust leads to irritation of airways; skin contact with residual process oils may cause sensitivity in rare cases
Environmental hazards: SBR does not dissolve in water, can pose long-term littering or microplastic concerns
Our workers interact with tons of this material every year, so the small percentages of leftover monomers never go unnoticed—especially when operators have cut open fresh bales. We push regular air monitoring and housekeeping to keep workplace risk in check.
SBR: About 98%
Other components: Emulsifiers, stabilizers, residual styrene (less than 0.1%), butadiene monomer (usually below detection)
On the factory side, we monitor trace amounts of unreacted chemicals after every batch. The reaction never goes to complete zero. Sometimes stabilizers or antioxidant residues make up the balance, and we track these for final product release.
Inhalation: Remove affected operators from dusty zones, ventilate, offer medical review if symptoms persist
Skin contact: Remove any contaminated clothing, wash with soap and water, avoid abrasive scrubbing
Eye contact: Rinse immediately under running water for at least 15 minutes, obtain medical help if irritation continues
Ingestion: Not considered likely, but professional response needed if dust or tiny fragments swallowed
Production leads always remind teams that quick response makes a real difference, especially for dust in eyes and respiratory irritation.
Suitable extinguishing media: Dry chemical powder, foam, or CO2
Combustion products: Heavy black smoke, carbon monoxide, hydrocarbons, possible traces of acrid chemicals
Protective equipment: Firefighters use full protective gear with breathing apparatus
Fire drills in the plant focus less on direct rubber ignition and more on the risk posed by surrounding barrels or racks. If SBR does catch, dense smoke can be a hazard for both our people and the environment.
Personal precautions: Wear dust masks, avoid skin contact, keep non-essential personnel away
Environmental precautions: Prevent spill granules or powder from entering drains and waterways
Cleanup methods: Scoop up mechanically, transfer to suitable containers, clean area with water spray if indoors
Spillage rarely means emergency for our SBR, but it does mean extra sweeping, vacuuming, and checking stormwater grates near unloading bays. The biggest risks show up with fine powder rather than bales.
Handling: Minimize dust, use proper vented spaces, avoid sources of ignition, ensure pallets are stable
Storage: Store away from heat and sunlight, stack not more than prescribed height, maintain dry conditions, keep off damp floors
On the shop floor, we’ve seen overheating spoil entire batches. Humidity can lead to mold or degrade the appearance of bales, making customers ask hard questions about batch consistency.
Engineering controls: Local exhaust or general ventilation in compounding and packing zones
Personal protection: Nitrile gloves, safety glasses, dust masks for cutting or handling crumb forms
We keep a close watch on the long-shift teams in compounding, making sure PPE stock doesn’t run out and that exhaust fans keep air moving. Residual styrene vapor is low, but continuous exposure adds up, so our investment in monitoring gear pays off.
Appearance: White or off-white solid bales or granules
Odor: Mild, faint hydrocarbon scent
pH: Not applicable for bulk rubber
Melting point: No true melting, decomposes above 200°C
Solubility: Insoluble in water, swells in some organic solvents and oils
Handling the product at scale, we routinely check the basics—the smell, the look, the “feel” when compressed. Changes in these can point to off-specification reactions or contamination.
Chemical stability: Stable at room temperature under normal operating conditions
Reactivity: Avoid strong oxidizers, acids, and bases
Hazardous decomposition: Combustion emits carbon monoxide, hydrocarbons, traces of organic acids
Our experience tells us to keep polymer stock away from bleach, peroxides, strong acids, especially during cleaning seasons, to cut down on unintended reactions.
Acute toxicity: Low for bulk SBR, but trace monomers can be irritants
Chronic exposure: Ongoing contact with unwashed hands can lead to dermatitis or rare sensitivity
Inhalation: Dust may irritate nose and throat
Laboratory teams keep an eye on air and surface residue. Regular medical checks support early detection for colleagues who spend many years in production.
Persistence: SBR hangs around in the environment, breaks down slowly
Bioaccumulation: Does not appreciably build up in living tissue
Aquatic toxicity: Bulk rubber has low acute hazard, but crumb or dust may disrupt aquatic habitats
We’ve seen the impact of off-cuts or spilled granules along our drains and work hard to keep stormwater free of polymer run-off, especially during rainy season.
Preferred disposal: Send bulk waste to licensed landfill, incinerate only in approved facilities
Recycling: Large-scale users often grind and reuse off-spec or excess scrap in non-critical applications
Disposal isn’t just a matter of putting waste in a bin. Our plant audits focus on closed-loop recycling and working with external partners to get acceptable alternatives to simple landfill.
UN classification: Not regulated as a hazardous good under most codes for bulk transport
Packing: Standard bales or bulk bags, with care to avoid sharp loads/shock
Moving SBR out by truck or rail, our loading teams double-check that bales are strapped down and that labeling matches the MSDS precisely, especially for international shipments.
Relevant standards: Compliance with national chemical laws, OSHA, REACH where exported
Labelling: Bales and bags marked with composition and key hazard notes
Regulations change fast, so our compliance team tracks the rules in every country. Training operators and shipping staff in new labelling systems takes up as much time as the paperwork itself, but it avoids border delays and recalls.
