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HS Code |
770021 |
| Appearance | White powder |
| Purity As Sio2 Percent | Minimum 98% |
| Particle Size Mean Um | 10-20 |
| Ph 5 Percent Dispersion | 6.0-7.5 |
| Moisture Content Percent | Maximum 5% |
| Bulk Density G Per L | 200-300 |
| Surface Area M2 Per G | 150-200 |
| Loss On Ignition Percent | Maximum 7% |
| Specific Gravity | 2.0-2.2 |
| Oil Absorption Ml Per 100g | 250-300 |
| Color | White |
| Refractive Index | 1.46 |
As an accredited Silica for Rubber Industry CS Grade factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for "Silica for Rubber Industry CS Grade" is a 25 kg multi-layer kraft paper bag with moisture-resistant inner lining. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Silica for Rubber Industry CS Grade is packed in 20′ containers, optimized for secure, moisture-free bulk transportation. |
| Shipping | Silica for Rubber Industry CS Grade is securely packaged in moisture-resistant, multi-layer bags (typically 20-25 kg) or bulk containers. Bags are palletized and stretch-wrapped for stability during transit. Shipments are clearly labeled with product details and safety information, ensuring compliance with industry regulations and safe handling throughout transportation. |
| Storage | Silica for Rubber Industry CS Grade should be stored in a cool, dry, and well-ventilated area, away from moisture and incompatible substances. Keep the material in tightly sealed, labeled containers to prevent contamination. Avoid direct sunlight and sources of ignition. Ensure good housekeeping to minimize dust generation, and store at ambient temperature. Follow all regulatory guidelines for industrial chemical storage. |
| Shelf Life | Shelf life of Silica for Rubber Industry CS Grade is typically 24 months if stored in original, sealed packaging under dry conditions. |
Applications of Silica for Rubber Industry CS Grade in Industrial ManufacturingOur CS Grade silica finds established use across demanding rubber industry sectors. We supply this grade to manufacturers with specific process, compliance, and end-product requirements, ensuring both consistency and performance from formulation to finished goods. Key downstream applications span tires, conveyor belts, footwear soles, industrial hoses, silicone rubber products, and automotive seals. 1. Tire ManufacturingSilica serves as a crucial reinforcing filler in tire treads and sidewalls, allowing tire producers to enhance wet grip, reduce rolling resistance, and extend durability compared to carbon black formulations. This material integrates with natural or synthetic rubber in controlled compounding processes, with close monitoring for batch dispersion uniformity and moisture content. It contributes directly to low rolling resistance tire lines, including passenger car, truck, and specialty tires. Compliance with automotive OEM and global safety regulations governs raw material selection and usage protocols. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Conveyor Belt CompoundingIn heavy-duty conveyor belt production, silica provides abrasion resistance and improved heat aging properties. Belt manufacturers integrate silica with natural rubber blends to achieve long service life under mechanical and thermal stress. This silica meets demanding requirements for anti-aging, flexibility retention, and cut resistance—impacting mining, logistics, and material handling belts. Formulation precision and batch traceability are key to meeting regulatory and operational standards. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Footwear Soles and Technical Rubber GoodsShoe sole manufacturers and technical rubber goods plants utilize silica to improve abrasion resistance, non-marking properties, and surface finish of molded and extruded products. Our product enables consistent hardness and flexibility characteristics in both sports and protective footwear. Silica plays a secondary role in providing color consistency for light-colored and transparent soles, replacing carbon black where color is a factor. Compliance with global footwear safety and chemical content regulations is mandatory for export-grade goods. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Automotive Seals and WeatherstripsAutomotive sealing system manufacturers rely on silica to enhance compression set, weathering resistance, and dimensional stability in EPDM, silicone, and natural rubber blends. These properties are essential for window, door, and trunk seals subject to temperature fluctuation, ozone exposure, and UV radiation. Our CS Grade silica integrates into mixing and extrusion lines equipped for strict environmental controls. Customers demand consistent compound flow and minimal surface bloom, meeting critical sealing function standards in global automotive supply chains. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
5. High-Performance Industrial HosesProducers of hydraulic and industrial hoses use silica to improve tear strength, flexibility, and pressure endurance in rubber hose layers. Formulators target specific performance levels for applications in construction, oil and gas, food-grade, and chemical transfer hoses. Silica’s particle size and aspect ratio distribution must remain consistent to avoid processing downtime or extrusion defects. Integration at the premixing stage ensures compatibility with reinforcing textiles or metal cords and with additional anti-aging systems for critical environments. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
6. Silicone Rubber CompoundingProducers of silicone rubber components incorporate silica as a structuring and reinforcing agent, increasing tensile strength, tear resistance, and compression set. The consistent particle size of our CS Grade blends well in high-consistency and liquid silicone formulations for both molded and extruded silicone parts. Silica content requires fine adjustment based on desired transparency and mechanical properties. Compliance with food contact and medical grade requirements is essential for certain product lines. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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Competitive Silica for Rubber Industry CS Grade prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
Flexible payment, competitive price, premium service - Inquire now!
In the rubber industry, consistency and trustworthy performance speak louder than labels or glossy data sheets. Having manufactured silica for decades, every improvement we make draws from setbacks and lessons learned in the real world. Our CS Grade silica was born out of constant dialogue with tire plants and molded goods workshops, not from any textbook formula. We designed this grade to answer the problem of fluctuating batch qualities in rubber compounds, because small variations don’t just show up in spec sheets — they ripple through end products, whether it’s tire tread mileage, hose flexibility, or sealing profiles.
Factory managers notice when compounding goes sideways. We have seen recipes thrown out because an inconsistent reinforcing filler led to problems with extrusion, curing, or even simple weighing. A batch of silica that seems fine on paper means little if it clumps, causes dust-off, or shifts Mooney viscosity unexpectedly. When we started refining the wet precipitation route for the CS Grade, every operator’s complaint — from bridge formation in hoppers, to needing stable viscosity in summer and winter — shaped what we do today.
CS Grade silica finds its strength in balanced particle size and surface area. This didn’t come from chasing the highest surface number or boasting about micro-fine textures. During countless runs, what matters more is a middle ground: enough reinforcing potential, but not so much as to make mixing a headache or increase mixer wear. Particle size distribution remains tightly controlled so line operators don’t deal with unpredictable slump or uneven batch textures. The oil absorption of this grade was finetuned to prevent bleeding in uncured stocks and to keep finished parts from crazing or cracking as they age.
We committed to a brighter, whiter product not for show, but to help with pre-coloring and pigment demands in rubber goods. The cleaner color reduces the load on color masterbatches and supports manufacturers seeking white or pastel rubber compounds for specialty hoses or seals. Feedback from belt plants pointed out that off-color silica led to unwanted shade differences — a headache in conveyor and visible rubber parts. That’s why our team controls every filter cake’s wash process, which took years to standardize. The result shows in bale or granular form: little dust, reliable pourability, and fewer surprises during storage.
Not all precipitated silica works the same in rubber. CS Grade draws a crowd among our steady customers because it handles the trade-off between workability and reinforcement. Standard-grade silicas with a wider particle size spread often bring headaches at the mixer. We made sure that batch-to-batch stability comes first — an approach that values the quality team’s time as much as the purchasing manager’s forecast.
Some rubber plants try to use high-dispersion silicas developed for high-end sports tires in regular molded goods, hoping for better tear strength or abrasion resistance. Often, this just leads to dust issues, longer mixing cycles, and little practical benefit in a hose or shoe sole. Experience taught us that CS Grade offers enough structure to enhance tensile strength, but won’t drive up energy costs or blacken the inside of the Banbury mixer with fine, airborne dust. Peroxide and sulfur systems both show healthy rebound resilience, with no risk of excessive modulus if formulation tweaks are needed later.
Anyone who has loaded filler into a tilt-mixer knows the headache of clouds of white dust clinging to everything in sight. CS Grade cut those headaches by producing granular forms that pour easily, so operators spend less time cleaning up and more time on product. In busy calendaring shops, material flow matters as much as rheology. Delivering silica that resists caking or bridging in storage bins means fewer stops, fewer mistakes, and a smoother production week.
Maintaining electrical safety also comes into play: lower dust means reduced risk of static discharge, especially when mixing with carbon black or other energetic fillers. After we introduced the granular CS Grade, plant engineers reported easier compliance during safety checks — less airborne particulate, fewer filter replacement headaches, and smoother housekeeping. These details may not end up in a sales brochure, but they shape cost and morale across the busy rubber plant.
The CS Grade finds everyday use in tires, hoses, technical rubber parts, automotive seals, and footwear. Our product lines often run back-to-back between these sectors, so we see firsthand how mixing or extrusion quirks show up in end-user complaints. In our ongoing collaboration with tire developers, we’ve tracked mileage outcomes, rolling resistance, and wet grip performance over many seasons. The CS Grade consistently helps achieve fine-tuned rolling resistance without plunging wet traction below OE standards.
For hose and molded product clients, we’ve seen demands shift in response to automotive trends and regulatory changes. CS Grade supports stable elongation, tear resistance, and modifiable hardness whether working with SBR, EPDM, natural, or specialty elastomers. It lets compounders swap out grades from various material flows — raw, pre-mixed, or masterbatches — without needing to reset the process for each run. This is crucial during production changes, since stoppages or rejects can carry high costs.
Silica is a tricky product to manufacture in a way that serves working compounding lines. We’ve fielded endless questions about dust, mixing time, and even the long-term stability of stocks exposed to seasonal humidity changes. We faced complaints about inconsistent bales and clumps forming in bins during rainy seasons. Common silica suppliers sat on these issues for years, happy to ship and leave the confusion to the compounder. We took a different approach: supervisors collected batch samples across wet and dry months, tracking caking, slump, and pour characteristics before shipping.
Even today, lab desks at our plant house containers from clients, each marked with lot numbers and feedback tags. We run these back through our own trial lines, adjusting pH, spray rates, or agitation speeds long before shipping a ton out the door. Over time, these efforts have built up confidence: our technical support people spend less time chasing down quality complaints and more time helping customers experiment with new recipes or additives. This keeps the whole sector moving forward.
Rubber processors have shifted priorities as supply chains and market forces change. Not long ago, buyers pushed for the lowest per-ton price, running whichever grade they could source with little regard to downstream headaches. Today, most plants care more for predictable processing, reduced clean-up, and stable end products.
Filling orders from many countries, we see how regulatory shifts around emission controls or end-of-life recycling feed back into raw material choices. Technical teams want silica that allows for clean, efficient mixing and lets them adjust for bio-based oils or novel curing agents. The CS Grade adapts because it works both in old-school compounding setups and in newer, energy-efficient lines, all without fuss.
As silica adoption keeps expanding beyond basic tires and hoses, we support formulation trials with regular quality samples. Some plants use our technical team onsite or consult by video to troubleshoot batch variations or new mixing challenges. Our advice is always shaped by actual plant experience rather than abstract theory — we carry the dust of the production floor in all that we do.
Much of our product evolution didn’t happen in a lab but on customer lines, with production teams taking note of what worked, what failed, and what needed adjustment. We’ve realigned our filtering, drying, and packaging methods after seeing how bales held up in different climates or what happened after weeks in a warehouse. Every decision traces back to a root cause: does the silica help the plant operator, or does it create new problems down the line?
Working closely with some of the longest-running rubber plants in the industry, we’re never far from direct, sometimes blunt, feedback. This has led us to upgrade bulk packaging, rethink anti-caking agents, and tune granule sizing so forklifts move bales without fracturing them or leaving powder spills. We’re always asked for better “free flowing” product — some promise this, but only a regular supplier who stands next to a loading dock on a summer day can see how it pans out hour after hour.
Every year brings a fresh batch of performance rubbers, new environmental standards, or changes in tire labeling regulations. Customers come asking about improved wet grip, better abrasion resistance, or ways to lower energy use in mixing. We respond not from ivory towers, but from the point of view of those who fix real machinery, weigh up the costs and benefits, and care about what happens after a sale.
CS Grade adapts as rubber processors try new elastomers, alternative curatives, or high-recycled content stocks. Our teams keep updating process parameters, so old lines and state-of-the-art equipment both get product that flows well, blends smoothly, and supports the ongoing push for consistent performance. In new R&D pushes for smart tires, connected mobility, or lighter, more fuel-efficient vehicles, the demand for reliable silica only grows.
It’s common now to see rubber manufacturers aim for lower rolling resistance and better wear profiles in a single tire, all without losing workability in the shop. With ongoing changes in car design, mass transit needs, and regulatory pressures, we expect the silica mix to keep evolving. Our role isn’t just as a supplier, but as a working partner. We share test results, production headaches, and new solutions in regular calls or site visits.
It’s tempting to see silica as a commodity, a white powder anyone with basic chemical know-how can make. Real production experience demonstrates otherwise. Differences in agitation, spray rates, temperature swings, or storage humidity all impact how that material affects your rubber. Over years spent responding to customer breakdowns, urgent reformulations, or manufacturing expansions, we know the details matter.
Every batch of CS Grade silica faces real scrutiny: not just in our labs, but on actual compounding lines, in storerooms, and during stored inventory assessments. This isn’t just about compliance, but about making sure deliveries work as intended. Feedback loops with customers have brought us to where we are now: producing silica that tire, hose, and molded rubber factories rely on, season after season.
Choosing a silica means making a decision about how smoothly your lines run, how confident you feel shipping a finished part, and the reliability of your product in the field. Our CS Grade stands out because we’ve kept our focus where it makes a difference: tighter control of particle size, less dust during mixing, and steadier performance regardless of climate swings or formulation tweaks. We pay attention to feedback — whether from quality managers noticing a drop in reject rates, or line operators appreciating easier handling — and use these insights to guide daily production.
Our manufacturing teams take pride in more than just output stats. Each time a customer rings with a challenge or a new requirement, we use it as a learning opportunity. This hands-on approach built trust across the industry, letting us respond quickly to sector shifts or sudden increases in demand.
At every step, our CS Grade silica is shaped by people who think about what happens beyond the shipping dock. Having stood inside tire plants with engineers fighting against batch variation, or worked through formulation changes with compounders who need new features, we know what’s at stake. Our approach isn’t about one-size-fits-all: every run is checked against past experience and future needs. That’s why factories, workshops, and QA labs across the world turn to CS Grade product year after year.
Whether a business is launching a new tire plant, expanding hose production, or adjusting recipes to meet environmental targets, having a stable, easy-to-handle reinforcing filler makes every step that bit smoother. This isn’t the result of chance; it comes from years of hands-on production, steady partnerships, and a willingness to learn from every shipment and every customer challenge. For those who demand more from their silica, we provide the real-world experience that backs up every claim we make.
