Ultra fine Silica Powder Semiconductor Encapsulation超细硅微粉(半导体封装配套)1
Ultra-fine Silica Powder (Semiconductor Encapsulation)超细硅微粉(半导体封装配套)1
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Ultra-fine Silica Powder (Semiconductor Encapsulation)超细硅微粉(半导体封装配套)1
Precipitated Barium Sulfate 沉淀硫酸钡5
Precipitated Barium Sulfate 沉淀硫酸钡4
Precipitated Barium Sulfate 沉淀硫酸钡3
Precipitated Barium Sulfate 沉淀硫酸钡2
Precipitated Barium Sulfate 沉淀硫酸钡1
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PRODUCT INTRODUCTION

Precipitated Barium Sulfate is a high-purity functional mineral filler produced from high-quality barite ore through grinding, reaction synthesis, filtration, drying and classification. Compared with natural barite powder, it offers better whiteness, lower oil absorption, narrower particle size distribution and more stable chemical properties.

This product is widely used in coatings, paints, powder coatings, marine coatings, plastics, rubber and composite materials. In coating systems, it improves hiding power, surface smoothness, weather resistance and corrosion resistance, and reduces formulation cost. In plastics and rubber, it enhances stiffness, dimensional stability, impact resistance and wear resistance. It is also applied in non-ferrous metal mineral processing as weighting agent and functional additive.

Our precipitated barium sulfate is produced under strict process control. It is available in different grades according to particle size, whiteness, oil absorption, brightness and application requirement. Each batch is inspected for BaSO₄ content, whiteness, oil absorption, particle size, moisture and dispersion performance before shipment.

We provide complete export documents including COA, TDS and SDS for quality traceability and customs compliance. Our technical team can recommend the most suitable grade and dosage according to your material system, production process and destination country regulations.

POINTS FOR ATTENTION

ORDER INSTRUCTIONS
1. Confirm Application and Material System Please inform us of your application field, downstream product, resin or matrix type, production process, particle size requirement and whiteness target. We will recommend the most suitable precipitated barium sulfate grade.
2. Trial Sample and Laboratory Evaluation We can provide trial samples for formulation test, dispersion evaluation and performance verification. Customers may test whiteness, particle size, oil absorption, hiding power and compatibility with their material system. Sample COA and SDS will be attached.
3. Confirm Packaging, Quantity and Export Terms Standard packing: 25kg bag / carton, 50kg bag, IBC jumbo bag. Custom shipping marks and pallet reinforcement available. Quotation under FOB / CIF / DDP is acceptable. Standard export data: HS Code 3824.9999, non-hazardous. Required customs documents: commercial invoice, packing list, bill of lading, certificate of origin, COA and SDS.
4. Delivery and After-sales Technical Support Each batch is supplied with COA, TDS and SDS. Our technical team supports grade selection, dosage adjustment, dispersion optimization and process guidance, and assists with import declaration information for destination ports.
Trial Order Tip:
For new customers, we recommend a small trial batch first to verify precipitated barium sulfate performance in your actual production system and pre-review export documents before bulk order.
USAGE NOTES
Dosage Control:
The recommended dosage varies by application, typically from 10% to 40%. Start from lower dosage and adjust according to formulation test and production result.
Dispersion Operation:
Add precipitated barium sulfate gradually into the matrix under stirring, extrusion or grinding. Control dispersion time and shear intensity to avoid particle agglomeration.
Compatibility Check:
Before mass production, test compatibility with resins, polymers, pigments, additives and other fillers. Observe viscosity change, dispersion stability and final product performance.
Process Condition Consideration:
Adjust grade and dosage according to particle size distribution, processing temperature, moisture and final product specification. Fine grades usually require more careful dispersion.
Storage & Sea Freight Guidance:
Keep sealed in a dry, cool and ventilated warehouse. Avoid moisture, rain and direct sunlight. It is non-dangerous goods for shipping.
Safety Operation:
Wear dust mask, gloves and goggles during handling. Avoid inhaling dust. If splashed into eyes, rinse with plenty of clean water immediately.
COMMON FORMULAS
Application TypeMain System ComponentsRecommended Grade
Industrial CoatingResin, solvent, pigment, precipitated barium sulfatePB-100
Powder CoatingPowder coating resin, curing agent, precipitated barium sulfatePB-200
Marine CoatingMarine paint resin, anti-corrosion additive, precipitated barium sulfatePB-300
Plastic CompositePP/PE/PVC resin, stabilizer, precipitated barium sulfatePB-400
Non-ferrous Mineral ProcessingFlotation system, weighting agent, precipitated barium sulfatePB-500
Rubber SealRubber matrix, carbon black, precipitated barium sulfatePB-600
Anti-corrosion CoatingAnti-corrosion resin, zinc phosphate, precipitated barium sulfatePB-300
Custom FormulationCustomer material system and performance targetCustom Precipitated Barium Sulfate
Formula Guidance:
Use PB-100 for industrial coatings, PB-200 for powder coatings, PB-300 for marine/anti-corrosion coatings, PB-400 for plastics, PB-500 for mineral processing and PB-600 for rubber. The dosage should be confirmed by formulation test and final product quality inspection.
COMMON PROBLEMS IN DOWNSTREAM PRODUCTION
Whiteness Not Meeting Requirement High iron content, improper ore selection or contamination during handling may reduce whiteness. Solution: Select high whiteness grade, verify purity and avoid contamination in production.
High Oil Absorption and Viscosity Increase Fine particle size, high surface area or excessive addition increases coating viscosity. Solution: Reduce dosage, select coarser grade and optimize dispersant system.
Poor Dispersion and Agglomeration Insufficient surface treatment, low shear force or unsuitable particle size causes agglomerates. Solution: Use modified grade, increase dispersion time and optimize processing condition.
Reduced Mechanical Strength in Plastics Poor interface adhesion, excessive dosage or unsuitable particle size reduces composite strength. Solution: Reduce dosage, use surface-treated grade and improve interface compatibility.
Low Corrosion Resistance in Marine Coating Unsuitable grade, poor dispersion or wrong formulation reduces anti-corrosion performance. Solution: Select marine coating grade, improve dispersion and optimize formulation system.
Low Separation Efficiency in Mineral Processing Wrong particle size, insufficient weighting effect or unstable pulp density reduces efficiency. Solution: Select mineral processing grade, adjust dosage and stabilize process parameters.
Customs Detention Due to Mismatched Documents Incorrect HS code or SDS information triggers inspection and detention at destination ports. Solution: Confirm destination country regulations before order. Standard export data: HS Code 3824.9999, non-hazardous. We supply consistent full-set SDS / COA documents.
Batch Performance Variation Changes in raw material, particle size or whiteness cause inconsistent results. Solution: Standardize production process, inspect whiteness and particle size per batch, and stabilize incoming raw material.
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 FAQ

PRICE INFORMATION

  • Quotation Basis: CMC price depends on product grade, viscosity, substitution degree, order quantity and delivery terms.
  • Price Validity: All quotations are subject to market raw material fluctuation. Normally valid for 7 days unless otherwise specified.
  • Price Contains: The quoted price covers product cost and standard export packaging. Freight, insurance and export charges are calculated separately according to Incoterms.
  • Tax & Invoice: Commercial invoice for export will be provided. Relevant export tax formalities can be handled.
  • Payment Discount: Better price can be offered for larger repeated orders. Please contact us for the latest formal quotation.

DELIVERY TIME & SHELF LIFE

  • Production Lead Time: 7–15 working days after receiving your deposit, subject to factory production schedule.
  • Shipping Arrangement: After production completion, we will book container and arrange shipment. Port space availability may affect the departure date.
  • Transit Time: Sea transit time varies according to destination port, generally ranges from 15 to 45 days.
  • Shelf Life: 24 months from production date when stored under proper dry and cool conditions with original sealed packaging.
  • Storage Warning: Once the bag is opened, please consume as soon as possible and keep away from moisture, high temperature and direct sunlight.

PRODUCT QUALITY

  • Raw Material Inspection: All raw materials are strictly inspected before entering production line to guarantee stable base quality.
  • In-process Monitoring: Continuous online monitoring during production for viscosity, substitution degree and moisture content.
  • Batch Test: Every finished batch will be sampled and tested before delivery. Qualified report will be provided together with shipment documents.
  • Consistency Control: Automated production lines reduce batch difference, ensuring stable performance for repeated orders.
  • Quality Support: We accept third-party inspection before shipment. Technical team offers after-sales technical support for quality related issues.

ABOUT US

  • Headquartered in Shijiazhuang: Based in Shijiazhuang, Hebei, a globally influential fine chemical production hub with huge capacity and full industrial chain to ensure stable raw materials and bulk supply.
  • Geographic Advantage: Convenient inland transport near Tianjin and Qingdao ports, supporting fast container shipment and competitive export logistics cost.
  • Full-chain Supplier: One-stop provider of fine chemical additives and matching production equipment, custom service available beyond cellulose ethers.
  • Technical Team: Professional team supplies formula consultation, sample testing and product selection for various industrial projects.
  • Global Export: Years of export experience, providing reliable goods, full export documents and timely after-sales technical support.

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