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HS Code |
943632 |
| Appearance | white powder |
| Specific Surface Area | 160-180 m2/g |
| Ph Value | 6.0-7.5 |
| Loss On Ignition | <7% at 1000°C |
| Moisture Content | <5% at 105°C |
| Sieve Residue 45um | <0.5% |
| Bulk Density | 200-300 kg/m3 |
| Sio2 Content | >98% |
| Oil Absorption | 2.0-2.5 ml/g |
| Dbp Absorption | 2.20-2.55 ml/g |
| Reflectance | >94% |
| Structure | amorphous |
As an accredited Silica for Rubber Industry (Conventional Silica) CS factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging is a 20 kg white polypropylene bag labeled "Silica for Rubber Industry (Conventional Silica) CS," featuring safety instructions. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Silica for Rubber Industry (Conventional Silica) CS: 20–22 metric tons packed in 25kg bags. |
| Shipping | Shipping for **Silica for Rubber Industry (Conventional Silica) CS** is typically handled in 25 kg multi-layer paper bags or 500-1000 kg jumbo bags, securely palletized and shrink-wrapped. The material should be transported in dry, covered vehicles and stored in cool, dry, well-ventilated areas to prevent moisture contamination. |
| Storage | Silica for Rubber Industry (Conventional Silica) CS should be stored in a cool, dry, and well-ventilated area away from moisture and incompatible substances. Keep the material in tightly closed bags or containers to prevent contamination and absorption of humidity. Avoid direct sunlight and sources of ignition. Ensure that the storage area is equipped to manage dust and facilitate easy access for handling and transportation. |
| Shelf Life | Shelf life of Conventional Silica CS for the rubber industry is typically 24 months from manufacturing date if stored properly. |
Applications of Silica for Rubber Industry (Conventional Silica) CS in Industrial ManufacturingOur conventional precipitated silica has been continuously refined to meet the technical, regulatory, and production needs of advanced rubber industry segments. As the original manufacturer, we support global partners with comprehensive silica grades for diverse, process-specific applications, maintaining high consistency for downstream innovation and efficiency. 1. Passenger Car Tire CompoundingIn radial passenger tire manufacturing, silica enhances the tread’s wet grip performance and abrasion resistance, while supporting lower rolling resistance for fuel efficiency. The incorporation occurs at the masterbatch mixing stage, requiring careful dispersion for uniform property control. Our R&D and quality-control teams maintain tight tolerances in particle size and structure to enable precise response to compounders’ recipes. Industry compliance standards
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2. Truck and Bus Tire ManufacturingSilica supports durability, increased cut resistance, and enhanced mileage in the tread and sidewall areas of commercial vehicle tires. Different production parameters require adjustments in surface area and structure to match highly loaded compounds, and integrate smoothly with steel cord reinforcement. Manufacturers leverage silica for balance between abrasion control and tear strength as demanded by long-haul and regional transport operators. Industry compliance standards
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3. Footwear Soling and Technical Rubber GoodsIn footwear and technical rubber production, conventional silica offers abrasion resistance, non-marking performance, and tear strength, serving as a key reinforcing filler for shoe outsoles and molded elastomeric parts. Downstream molders choose specific grades to balance flexibility and hardness without compromising on wear properties or color requirements for fashion and safety applications. Industry compliance standards
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4. Conveyor Belt and Industrial Hose ProductionSilica is essential for heat resistance, abrasion durability, and adhesion in conveyor belt covers and industrial hose linings, especially where exposure to oils or high temperatures occurs. Large-scale compounders rely on carefully controlled dispersion and compatibility with specialty rubbers such as SBR, EPDM, and NR to meet complex, high-performance product demands. Industry compliance standards
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5. Silicone Rubber Compounding for Electrical InsulationIn silicone rubber, precipitated silica acts as a reinforcing filler to improve dielectric strength, tear resistance, and service life under electrical and heat stress. Downstream processors require narrow particle size distribution and controlled moisture content to eliminate conductivity and vulcanization disruptions, critical for reliable bushings, insulators, and wire coating applications used in demanding environments. Industry compliance standards
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6. Pharmaceutical and Food-Contact Rubber StoppersFor pharmaceutical stoppers and closures, silica improves purity, consistency, and sealing performance while enabling compliance with stringent extractables and leachables limits. Downstream manufacturers rely on ultra-low-impurity grades manufactured under strict process control to enable direct food or medicine contact without compromise to biocompatibility or regulatory acceptance. Industry compliance standards
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Competitive Silica for Rubber Industry (Conventional Silica) CS 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.
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Tel: +8615651039172
Email: sales9@bouling-chem.com
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As a manufacturer with decades in silica production for the rubber sector, we know progress doesn’t always come from a major invention—it often grows from the careful improvement of materials used daily. Our Conventional Silica (CS) models start with reliability and finish with the kind of predictability that lets rubber producers plan confidently. We built these grades from thorough feedback—tire engineers, footwear specialists, and gasket makers have all shown us what gets the most value from each ton of silica. That iterative back-and-forth taught us what makes conventional silica effective in real factories, not just on spec sheets.
Rubber compounding doesn’t allow much room for error during mixing or processing. We offer the CS series in a few distinct grades, not out of a desire for variety itself, but because every application puts its own demands on dispersion, particle size, and purity. Our production controls mineral purity within strict limits, holding SiO2 content steady so batch-to-batch variability stays away. Surface area, oil absorption, and pH are all tuned to the tight ranges where your mixer operators notice smoother blending and less energy draw. Our CS23 and CS36, for example, address different levels of tensile reinforcement; CS23 provides a classic fine-particle structure for automotive weatherstripping, while CS36 supports higher resilience in everyday tire treads. These subtle differences play out at scale—in final elongation, rolling resistance, or product weight—long before a finished part reaches end users.
Those unfamiliar with rubber making may not realize how dramatically fillers like conventional silica change polymer behavior. Silica shifts the balance between flexibility and durability, compressibility and tear resistance. As producers, we get regular feedback not just from laboratory results, but from customer process lines where a half a point on moisture content leads to changes in scorch time or sheet separation. Our silica grades help compounders avoid clumping and dusting without the need for excess mixing heat, saving wear on equipment. These practical material aspects, from how easily silica blends into natural and synthetic types to how it streamlines curing, come straight out of the plant floor, not a corporate slogan.
The largest share of our CS silica heads straight into rubber for tires, conveyor belts, footwear, hoses, and gaskets. In tires, it’s not only about rolling resistance—mechanical grip, tread life, and ease of extrusion all hinge on the right grade. Our silica doesn’t come with smoky, unpleasant byproducts or gravelly residues that slow down batch turnover. Customers focused on cost-effective, everyday rubber goods tell us that switching from coarser, inconsistent fillers to our CS series gives them more stable extrusion rates. Less downtime for screen cleaning or compound changes means they can push higher throughput without as many rework cycles.
Footwear makers take advantage of CS silica for more responsive soles and improved color brightness. The consistent surface finish that comes from controlled particle gradation makes a visible difference, especially for light, fashion-forward applications. In industrial profiles and weatherstripping, our silica boosts rebound and compression set, letting downstream users produce seals that stay tight and flexible over longer service periods. While newer, highly engineered silicas dominate high-tech applications, reliable, conventional grades like our CS series remain the backbone of high-volume, commercial rubber manufacturing.
Working directly with rubber processors, we tailor supply based on seasonal trends and customer schedules. We understand what delays in filler shipments do to a mid-size tire producer’s bottom line. By controlling moisture and keeping agglomerate formation in check, our CS silica minimizes caking during humid months and keeps pneumatic and mechanical charging systems running trouble-free. These problems aren’t theoretical—they show up as actual production stoppages or wasted batches. Each adjustment to our production comes from investigating real world plant data: how material handles in various mixers, whether it bridges or flows smoothly, and how storage stability plays out in warehouses from Vladivostok to Durban.
Not all silicas offer the same blend of performance and ease of use. Some imported grades arrive with uncontrolled variability in particle size and residual salts, which translate quickly into sticky compounds and fouled dies. We saw customers lose half a day of throughput chasing minor formulation adjustments, only to track the cause to filler inconsistency. Our CS grades reflect not just the chemical specs, but the learned discipline of running kilns, mills, and classifiers for thousands of uninterrupted hours. Having tight process controls and silo-to-bag uniformity, the differences are most obvious in reduced batch adjustments and clarified quality claims at every audit.
Some may look to precipitated or highly dispersible silicas for super-premium tire formulations, yet plenty of products don’t need that niche performance—and don’t justify the cost. Our CS silica finds its place in applications where producers care equally about operating margins and finished performance. Unlike some high-surface-area grades, CS doesn’t soak up process oil and plasticizer at a rate that disrupts downstream vulcanization. Inconsistent, dusty fillers force plant managers to raise exhaust rates and run extra vacuum sweeps; our CS types ship dust-controlled and handle well using normal plant systems, cutting down unplanned maintenance.
Safe plant practice remains high on our agenda. We formulate batches to give low respirable dust emissions, helping our customers meet local workplace exposure standards. During production, our monitoring tracks PM10 and PM2.5 to keep working conditions as clean as possible. Over years of collaboration, occupational hygiene teams at regional manufacturers have confirmed that switching to CS silica meant less unplanned downtime for filter cleaning and less worker complaint about airborne irritation. Actual injury logs and absence rates improved, not just laboratory exposure readings. These improvements matter for more than regulatory reports—they build long-term trust with our customers and their workforce.
Along with in-plant safety, our technical support covers spills, storage, and handling logistics that extend through the carton, silo, or FIBC all the way to the mixer’s intake chute. We recommend sealed transfer lines and minimal open handling, based on years of accident-reduction programs in our own facilities. We take pride in a product that can move from our docks to your factory with little risk of surprise spills or air contamination.
The daily business of chemical manufacture deals with incoming impurities and raw material volatility. We tackle these head-on through additional filtration, optical sortation, and regular third-party audits of our supply chain. Each adjustment stems from direct experience—years back, a shipment of contaminated quartz nearly derailed half a season’s production for one of our tire customers. Afterward, we rebuilt our mineral procurement and tightened every acceptance test to near lab-grade scrutiny. Silica for rubber might look basic, but we approach every bag and silo as if it could reveal a new problem, treating each delivery with that level of scrutiny. To us, reliability grows out of learning from each misstep, not from putting “quality assured” on a brochure.
One persistent issue—batch-to-batch color or brightness shifts—comes from trace mineral co-contaminants. We direct efforts into fine-tuning our leaching and washing procedures, with every change cross-validated in our own and customer QA labs. Our team isn’t just proud of a bright, uniform powder; we back those claims with retention samples, immediate retest protocols, and full customer traceability for every batch.
Industry scrutiny on resource consumption led us to rethink energy and water usage across our lines. Our silica plant reclaims process water, and our kiln operations run heat-recovery systems that feed excess steam to local heating and greenhouse projects. We slashed scrap discharge by improving control at each milling stage. Once, these investments seemed like extra costs. Over the years, they generated real savings, strengthening our products’ market reach in new geographies where environmental compliance is now basic business hygiene. Customers want proof of responsible manufacturing, not just a letter. Internally, we track energy per ton and target reductions every quarter—a discipline that began with market pressure, but now goes unprompted for our own efficiency.
Packaging decisions also reflect customer needs: we respond to requests for recyclable bags, bulk delivery, or minimal ink labeling so our CS silica products align with growing customer demand for sustainable supply chains. Sometimes, that meant collaborating with partners to develop bags that survive the rigors of sea freight and humidity, while still qualifying for local recycling programs.
Supplying silica for rubber compounding takes more than selling powder—it requires ongoing communication between production teams, lab partners, and logistics planners. Through joint projects, we’ve helped some partners move from outdated mechanical stirring to continuous mixers, identifying which tweaks to CS silica saved most energy or delivered the best balance of green strength and processability. Tire and component engineers bring us real-world problems—like how to boost cut growth resistance in off-road applications, or stretch calendar life in humid tropical storage—and use our model variations as the test bed for improvement trials. Refusing to “ship and forget,” our technical staff regularly review plant feedback to update production methods.
As the rubber industry branches into specialty application areas—whether in high-performance tires, energy-saving conveyor belts, or long-life seals—the role of conventional silica continues evolving. Not every challenge calls for an expensive or exotic solution. By steadily refining CS grades and listening to compounders, mixer operators, and plant managers, we stay grounded in daily realities and ready to deliver materials that truly support our customers’ progress.
