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HS Code |
539890 |
| Appearance | Pale yellow solid |
| Polymer Type | Cis-1,4-Polybutadiene Rubber |
| Mooney Viscosity Ml 1 4 100 C | 39-50 |
| Density | 0.91 g/cm³ |
| Volatile Matter | Max 0.75% |
| Ash Content | Max 0.5% |
| Tensile Strength | Minimum 17 MPa |
| Elongation At Break | Minimum 400% |
| Cis 1 4 Content | 96-98% |
| Glass Transition Temperature Tg | -104°C |
| Color Index | Max 10 |
| Stabilizer Content | 0.2-0.3% |
| Solubility | Soluble in aromatic and aliphatic hydrocarbons |
| Oil Extension | None (non-oil extended) |
| Application | Tire manufacturing, footwear, mechanical goods |
As an accredited Butadiene Rubber (BR) 9000 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Butadiene Rubber (BR) 9000 is packaged in 35 kg tightly-sealed, moisture-proof polyethylene bags within reinforced cardboard cartons. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Butadiene Rubber (BR) 9000: 17-18 metric tons packed in pallets or bags, efficiently loaded. |
| Shipping | Butadiene Rubber (BR) 9000 is shipped in tightly sealed, moisture-proof bags or containers, typically in 25 kg bales or pallets. The product should be stored in a cool, dry, and well-ventilated area away from direct sunlight and heat sources to maintain stability and prevent degradation during transport. |
| Storage | Butadiene Rubber (BR) 9000 should be stored in a cool, dry, and well-ventilated area away from direct sunlight, heat sources, and oxidizing agents. The material should be kept in tightly sealed containers or packaging to prevent contamination. Avoid exposure to moisture and extreme temperatures. Recommended storage temperature is below 30°C for optimal stability and to preserve physical properties. |
| Shelf Life | Butadiene Rubber (BR) 9000 typically has a shelf life of up to 2 years when stored in cool, dry conditions. |
Applications of Butadiene Rubber (BR) 9000 in Industrial ManufacturingBR 9000 finds primary industrial demand in high-precision elastomer manufacturing, due to its exceptional abrasion resistance, flexibility at low temperatures, and resilience under cyclic loading. Below, we detail key application segments based on real downstream industrial demand and operational requirements. 1. Tire Tread and Sidewall FormulationMajor tire makers rely on BR 9000 to produce treads and sidewalls with high wear resistance, improved rolling resistance, and cold flexibility. Integrators use solution or emulsion processes depending on brand specification. Manufacturers adjust the grade selection to optimize dynamic properties and blending for precise compound reinforcement, critical to tire safety and performance on the road. Addition of BR 9000 occurs during compounding with natural and synthetic rubbers, fillers, and curatives, allowing adjustment of hysteresis and cut-growth performance for different tire platforms including passenger, commercial, and off-road tires. Industry compliance standards
Typical usage ratio
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2. High-Impact Polystyrene (HIPS) ProductionBR 9000 is a critical modifier in HIPS resin systems, imparting improved toughness, stress crack resistance, and processability for large-volume plastics applications. Key polymerization lines use a grafting technique, introducing BR 9000 into the polystyrene reaction phase to form the elastomeric dispersed phase. This yields controlled morphology for impact-resistant sheets, injection-molded parts, and appliance housings. HIPS producers monitor rubber content and phase size for specific application and mechanical property targets, while ensuring compliance with downstream processing safety and customer regulatory demands. Industry compliance standards
Typical usage ratio
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3. Impact-Modified ABS Resin ManufacturingBR 9000 serves as the backbone for the elastomeric phase in acrylonitrile butadiene styrene (ABS), enabling impact modification at a molecular level. Absorbing impact energy, BR domains balance rigidity and ductility for automotive parts, electrical housings, and business machine components. During emulsion graft polymerization, precise BR feed rates drive the rubber particle size, impacting gloss, colorability, and expansion tolerance. This stage determines the resultant ABS mechanical properties and downstream processability, including injection molding and extrusion performance. Industry compliance standards
Typical usage ratio
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4. Conveyor Belt and Industrial Rubber Goods ManufacturingHeavy-duty industrial belts and rubber goods use BR 9000 for its resilience, abrasion endurance, and flex-crack prevention. Mixing lines batch BR 9000 with natural and synthetic rubbers plus filler systems for formulations that tolerate repeated flexing, loading, and environmental exposures. Through internal mixers followed by calendaring or extrusion, integrators achieve tight tolerances in thickness and elongation attributes. Rubber compounds undergo pressing and vulcanization, yielding belts and molded components with predictable durability in mining, logistics, and process engineering applications. Industry compliance standards
Typical usage ratio
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5. Footwear Sole and Sports Equipment CompoundingFootwear and sporting goods industries employ BR 9000 to achieve a balance of abrasion resistance, flexibility, and fatigue durability in soling materials. BR 9000 enters mixing lines paired with styrene-butadiene and natural rubbers, along with mineral fillers and crosslinking agents. Close control of rheology during mixing and molding enables the production of lightweight, shock-absorbing soles and midsoles, as well as impact-resistant components for protective sports gear. Processors tailor BR content to tune rebound, hardness, and grip, directly impacting user experience and product longevity. Industry compliance standards
Typical usage ratio
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6. Cable Insulation and Sheath CompoundsWire and cable manufacturers incorporate BR 9000 for enhanced flexibility, mechanical protection, and environmental stability of insulation and outer sheath layers. Compounders blend BR with polyvinyl chloride (PVC) or other elastomers in cable jacketing compositions, reducing brittle failure and cracking from thermal cycles or mechanical stress. The integration step targets melt processing temperatures and extrusion viscosities compatible with high-speed continuous wire lines. Electrical grade safety and environmental requirements demand precise formulation control and continuous batch monitoring. Industry compliance standards
Typical usage ratio
Downstream process integration
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Competitive Butadiene Rubber (BR) 9000 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to sales4@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: sales4@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Working on the production line means seeing butadiene rubber from the inside out. Every batch tells a story: flow, texture, reaction—no surprises slip through when you spend decades with the process. When we talk about BR 9000, we mean more than just another grade of synthetic rubber. For years, we've followed this material step by step, adjusting the cold polybutadiene synthesis, tuning catalysts, watching exactly how our finishing lines affect the final product. You see the result where it matters: in the rolling mills, vulcanization ovens, and tire treads.
BR 9000 has a backbone of cis-1,4 polybutadiene. What does this actually mean for our customers? It tackles flex-fatigue like nothing else we've seen in lower-cis rubbers. When you’re building tires or conveyor belts, that extra resilience to constant bending and crack growth isn’t some abstract spec — it translates to longer life, fewer failures, and more trust in the product. Testing in our labs and direct feedback from technical teams give us one clear message: higher cis-content holds up better under stress and thermal cycling.
We run two types of synthesis setups: lithium-catalyzed and nickel-based. BR 9000 comes off the nickel system, pulling its structure into a configuration well-suited for dynamic, low-heat applications. That microstructure cuts hysteresis down, making rolling resistance in tires much lower, which means fuel savings for the end user. From our own friction and abrasion tests, the difference between this and general-purpose SBRs is easy to demonstrate. SBRs, useful as they are in many compounds, show higher rolling resistance and less cold flexibility compared to what we get from pure BR 9000.
Manufacturing teams expect regularity: pour, mix, shape, repeat. But it’s what happens on the roads, warehouse floors, and sporting tracks that matters most to the real-world user. We have partnered with manufacturers across industries to track how our BR 9000 stands up after months of actual use. Tire-makers have come back with wear rates showing hundreds of extra kilometers compared to their earlier compounds. Conveyor belts using our material report reduced cracking even under heavy cyclical loading. Sporting goods, especially high-performance golf balls and running shoe soles, take advantage of that high resilience, giving a “snap” with every compression but not wearing out quickly.
Rubber mat producers come straight to us for a softer touch and lower temperature brittleness. In automotive, low glass transition temperature means our material keeps its elasticity in winter instead of hardening as quickly as most blends do. From our own impact-resilience tests, numbers read more than 60 percent rebound—those simple numbers play out as smoother rides and more reliable vibration dampening.
Years spent in production reinforce what matters. Water has to be just right, agitation equipment needs constant care, and the catalyst environment can’t vary if you want predictable branching and molecular weight distribution. Troubleshooting an off-batch means running everything from viscosity and Mooney scorch to tensile strength, making sure every drum of BR 9000 enters the supply chain with those physical properties dialed in.
When compounders drop BR 9000 into blends, it disperses smoothly. Our experience shows that it takes fillers and oils readily, pulls up green strength, and doesn’t give trouble in extrusion or calendering—conditions that often reveal hidden quality problems. Vulcanization remains consistent, avoiding stubborn graininess or surface bloom. In practical use, downstream customers see mold release happen easier and fewer scorched ends, particularly when they run long and hot cycles.
Our largest share of BR 9000 goes directly into tire manufacturing—passenger car tires, truck treads, off-highway applications. Every kilometer counts, and lower rolling resistance matters when fuel prices remain high. The bounce and cold flexibility keep it popular for golf balls, athletic footwear, and other sports equipment requiring snap and soft impact recovery. Belting and flooring materials demand high abrasion resistance, and we see regular repeat orders from conveyor and flooring producers who trust the compound under industrial stress.
Our material has helped customers reduce formulation costs by enabling higher loadings of cheaper fillers, while still achieving targeted properties for stretch, snap-back, and cut resistance. Some use it for bushings and vibration dampers, where silence and longevity on rough terrain matter more than looks or wall thickness. These small manufacturers teach us a lot — they know what it takes for a product to last seasons, not just survive initial sales.
BR 9000’s edge starts from its cis-1,4 content above 96 percent. Ordinary BRs with lower cis-content, or those made by sodium or lithium processes, show more shrinkage on molding and a less rubbery feel once extruded. From firsthand mixing experience, we see that batch-to-batch predictability comes smoother with our nickel-catalyzed streams due to tight control over reaction temperature and duration.
Our reactors run multiple QC check-points per shift, making adjustments in real time so that molecular weight averages hold steady. This approach keeps our product consistent, not just within one day but across seasons. Most rubbers react unpredictably to small changes in ambient humidity or minor raw material imbalances. With the system we’ve built, customers using BR 9000 comment on the confidence downstream — mixes stay consistent, daylighting less downtime troubleshooting unexpected incompatibilities.
Rubber making has always been half science and half conversation. From day one, we’ve worked side by side with the compounds engineers and process technicians using BR 9000. We don’t just send samples — we roll up our sleeves and test run blends with them. When something fails, we get on the call, swap notes, and tweak either their process or ours until it works. Whether it's troubleshooting an unexpected scorch during mixing or addressing a non-uniform cure line in calendered sheets, we follow up until the line runs smooth.
Feedback doesn’t just drive incremental tweaks — sometimes it spurs major investments. Our recent demineralization upgrade came after one shoe outsole producer found trace impurities shifting cure times. The fix: tightening upstream water quality control. The gain: not just for them, but every user down the chain. Knowing how one property, say, ash content or volatility, can throw an entire batch off, we’re quick to bring lessons from the field right back into the plant.
Innovation in rubber compounding isn’t slowing down. As industries push for lighter vehicles with lower fuel consumption, demand rises for materials that drop rolling resistance without giving up abrasion resistance. We’ve aligned our own R&D around those pressures, working to tweak our process to achieve even higher purity and optimized chain lengths in future iterations of BR 9000.
Sustainability punches its way to the top of every agenda. Customers, regulators, and consumers all want to know: Are you using renewables? Is BR recyclable? We answer with both progress and honesty. Currently, our feedstock comes from fossil sources—something we are actively working to diversify by piloting renewable butadiene supply streams. We invest in process effluent controls and closed-loop water recycling; waste heat from reactors goes back to pre-heat fresh feed lines. Energy used per ton of product continues to drop, because resource efficiency equals both savings and regulatory peace of mind.
Our efforts go beyond our gates. We cooperate with tire and industrial rubber producers exploring rubber recycling and devulcanization projects. The unique blend of toughness and fatigue resistance in BR 9000 means offcuts and scrap can serve as feedstock for new blends, especially in non-critical applications. Closed-loop possibilities multiply when manufacturers start with a pure and reliable base rubber.
Every kilogram of BR 9000 reflects an extended network of expertise — not just our own chemists, but the engineers and process controllers from customers’ plants, the maintenance crew fixing pumps and reactors, the warehouse teams tracking temperatures and batch data through the supply chain. Years of making butadiene rubber in-house teach a certain humility: Not every property can be hammered into place, some come from slow refinement, learning from the missteps and tweaking patiently until it works. Predictable scorch times and consistent Mooney viscosity don’t appear by decree; they come from dozens of small optimizations — slight tweaks in temperature, minor catalyst reformulations, cleaner separation at the finishing station.
We’ve seen upstart mixtures come and go, and watched as new elastomer blends promise the moon. Many can deliver on one property, but trip up under real fatigue cycles or unpredictable weather. Our customers in tire manufacturing and industrial polymers have tested every new blend, but keep coming back to BR 9000 for high-endurance, heavy-duty use where service life and safety matter as much as up-front material cost.
Price competition never lets up. End markets want cheaper rubbers with ever-higher spec. As a manufacturer, we see the pressure from both sides. Some try to chase the bottom, cutting corners or blending in lower-quality fillers. We stick to a straighter path. Each drum, bale, or slab shipped from our plant carries the weight of our name — we know customers inspect it, laboratory-test it, and judge us by how it performs under their own customers’ scrutiny. In this business, trust forms batch by batch, over years, not in a single deal.
Technicians, compounders, and factory managers ask direct questions: Will BR 9000 stand up to their new mixes? Can they substitute out pricier synthetic blends and still hit their own durability marks? We work side by side in their plants and labs, swapping resin and carbon black ratios, heating cycles, press timings. Our commitment is to keep the knowledge pipeline open, evolving the product as new challenges come up.
From reactor to customer, every link in the BR 9000 chain matters. Once the material leaves our hands, it moves through compounding, shaping, curing, and inspection—any flaw or inconsistency tends to surface fast. We’ve learned this lesson in the trenches: if the raw rubber isn’t predictable, downstream work gets stuck on troubleshooting instead of running production.
In the past few years, we’ve overhauled both upstream and downstream documentation. Customers gain access not just to standard specs, but to the real data — how viscosity varies over time, batch trends in ash or impurity content, shift-by-shift details of reactor conditions. This helps process engineers understand how our BR 9000 will fit into their own systems, and flags anything out of the ordinary early, before it becomes a production issue.
We field service calls, host technical workshops with customers, and regularly support process troubleshooting at both new and seasoned plants. Full lifecycle support isn’t just a slogan to us; it’s a workflow — from developing compounding recommendations to sharing best practices in mixing, extrusion, molding, and vulcanization. Our team believes a relationship built on direct technical collaboration and generous sharing of experience pays dividends far greater than marketing promises ever could.
Making butadiene rubber today demands a mindset prepared to listen and adjust continuously. New requirements keep rolling in — from markets, supply chains, and changing regulations. We treat every challenge as a new experiment, using decades of plant data to predict how changes upstream will affect the end product.
With each new advance — tighter catalyst control, energy recapture, data-tracking upgrades — our BR 9000 gets just a little better. Customers challenge us daily with new blend requirements and product concepts. We welcome these, as the best learning comes through shared troubleshooting, not working in isolation. Our focus: serving real needs with materials that live up to scrutiny, every time.
The business of making butadiene rubber at scale offers constant surprises but also rewards patience, depth, and steady improvement. BR 9000 reflects all the lessons learned from thousands of production runs and hundreds of close collaborations with users building the products that keep the world moving.
