Wufeng Weitai Bull Barium Sulfate WT-138 for Rubber and Plastic Applications
Product Overview
Wufeng Weitai Bull Barium Sulfate WT-138 is a specialized extinction-grade barium sulfate engineered to deliver exceptional matting performance, high filler loading capacity, and enhanced coating durability in powder coating applications. With a precisely controlled particle size distribution (700 mesh / ~20 µm) and a whiteness level of 83% (ISO 2470), this product optimizes surface aesthetics while reducing formulation costs by enabling 20–30% higher filler incorporation compared to conventional talc or silica matting agents.
Sourced from natural high-purity baryte ore in Wufeng Tujia Autonomous County, Hubei Province, and processed through advanced micronization technology, WT-138 combines chemical inertness with outstanding weather resistance. Its unique particle morphology ensures:
- Uniform Light Diffusion: Achieves consistent matte finishes (60° gloss: 15–30 GU) without haze or surface defects.
- Suspension Stability: Zero sedimentation in resin systems due to matched density (4.3 g/cm³) and optimized rheology.
- Broad Compatibility: Seamless integration with epoxy, polyester, polyurethane, and hybrid powder coating resins.
Certified under ISO 9001 and RoHS, WT-138 is the ideal choice for formulators seeking to balance cost efficiency with premium coating performance in automotive, architectural, and industrial applications.
Key Features & Competitive Advantages
Superior Matting Performance
- High Extinction Efficiency: Reduces gloss by 50–70% at 10–15% loading (vs. 20–25% for calcium carbonate).
- Surface Smoothness: Minimizes orange peel effect via monodisperse particle distribution (PDI
- UV Stability: Maintains color fidelity after 1,000+ hours of QUV-B exposure (ASTM G154).
Formulation Flexibility & Cost Savings
- High Loading Capacity: Up to 40% filler incorporation without compromising flow or curing kinetics.
- TiO2/Resin Reduction: Low oil absorption (18–22 g/100g) cuts resin demand by 12–15%.
- Process Optimization: Reduces extrusion torque by 10–18% in twin-screw compounding (ASTM D2538).
Enhanced Coating Durability
- Chemical Resistance: Withstands acids (pH 2), alkalis (pH 12), and solvents (MEK rubs >100 cycles).
- Abrasion Resistance: Improves Taber abrasion resistance by 25% (ASTM D4060) at 20% loading.
- Thermal Stability: No decomposition below 1,500°C, ideal for high-bake powder coatings.
Sustainable & Safe
- Natural Mineral Base: Heavy metal content ≤10 ppm (Pb/Cd/As) compliant with EU REACH.
- Low Carbon Footprint: 30% lower CO₂ emissions vs. synthetic barium sulfate.
- Dust-Free Handling: OSHA-compliant granulation with ≤0.3% respirable particles.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Composition | ||
| BaSO4 Purity | ≥98.0% | XRF Analysis (ISO 29581) |
| Moisture Content | ≤0.5% | ISO 787-2 |
| Physical Properties | ||
| Particle Size (D50) | 18–22 µm (700 mesh) | Laser Diffraction (ISO 13320) |
| Specific Gravity | 4.2–4.4 g/cm³ | ISO 787-10 |
| Whiteness (ISO) | 83 ± 1% | ISO 2470 |
| Performance Data | ||
| Oil Absorption | 18–22 g/100g | ISO 787-5 |
| pH (10% Aqueous Slurry) | 6.5–7.5 | ISO 787-9 |
| LOI (1,000°C) | ≤0.5% | TGA (ISO 11358) |
Applications
WT-138 is engineered for excellence in powder coatings across industries:
1. Architectural Powder Coatings
- Facade Panels: Provides uniform matte finishes with Class A fire resistance (ASTM E84).
- Aluminum Profiles: Enhanges adhesion and corrosion resistance in outdoor applications.
- Anti-Graffiti Coatings: Facilitates easy cleaning without gloss alteration.
2. Automotive & Transportation
- Wheel Rims: Improves chip resistance and thermal cycling performance (-40°C to 200°C).
- Engine Components: Withstands oil, grease, and high-temperature exposure.
- Interior Trims: Halogen-free matting for low-VOC compliance.
3. Industrial Equipment
- Agricultural Machinery: Resists UV degradation and chemical fertilizers.
- HVAC Systems: Anti-static properties (surface resistivity: 10⁹–10¹¹ Ω/sq).
- Electrical Enclosures: Flame-retardant grades (UL94 V-0 achievable).
4. Consumer Goods
- Appliances: Scratch-resistant finishes for refrigerators and ovens.
- Furniture: Low-temperature cure compatibility (120–140°C).
- 3D Printing: Rheology modifier for powder bed fusion (PBF) processes.
Production Process & Quality Control
- Ore Selection: Natural baryte ore with ≤10 ppm heavy metals (XRF verified).
- Crushing & Grinding: Jaw crushers → Raymond mills → 200-mesh pre-refinement.
- Purification: Froth flotation (acid-free) to remove silica/iron impurities.
- Micronization: Wet grinding with zirconia beads to 700 mesh fineness.
- Surface Modification: Stearic acid coating for hydrophobic dispersion.
- Drying & Classification: Spray drying + air-jet sieving (D100 ≤ 30 µm).
- Quality Assurance:
- ICP-MS for heavy metals (Pb/Cd/As
- SEM analysis for particle morphology.
- Batch-wise ISO 9001 certification.
Why Choose Wufeng Weitai WT-138?
Technical Excellence
- Patented grinding technology for ultra-uniform particle distribution.
- Customizable surface treatments (silane, titanate, or non-ionic).
Resource & Cost Advantages
- Vertically integrated mining-to-production chain ensures price stability.
- 50,000-ton annual capacity with rapid lead times (7–10 days).
Sustainability Commitment
- 85% process water recycling and 60% renewable energy usage.
- Zero-waste production with 99% raw material utilization.
Customer-Centric Service
- Free sample testing and formulation optimization support.
- 24/7 technical assistance for extrusion, curing, and gloss control.
Competitive Comparison: WT-138 vs. Alternatives
| Property | WT-138 Barium Sulfate | Calcium Carbonate | Precipitated Silica |
|---|---|---|---|
| Matting Efficiency | High (15–30 GU at 10% loading) | Moderate (30–50 GU) | High (10–25 GU) |
| Chemical Resistance | Excellent (pH 2–12) | Good (pH 5–9) | Poor (pH 6–8) |
| Thermal Stability | 1,500°C | 800°C | 1,200°C |
| Cost per Ton | $420–450 | $200–250 | $1,200–1,500 |
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| Company Name | Beijing TDD E-commerce Co., Ltd | Pays/Région | China |
| Type d'entreprise | Boutique en ligne | Taille de l'entreprise | 2000 |
| Établi | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Produits principaux | Résine PVC, PP, PE, Pet, Dioxyde de titane, Pigment, Pneus de voiture | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
À propos de Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Code boursier : 603613. SH), fondée en 2002 et cotée au Main Board en juillet 2019, est principalement engagée dans le commerce électronique industriel et les plateformes Internet industrielles. Basée sur le commerce électronique industriel et soutenue par les grandes données industrielles et la numérisation industrielle, l'entreprise fournit des services de négociation de produits en ligne, des services d'information commerciale et des services de technologie numérique pour les produits industriels et les matières premières destinées aux industries connexes. En termes de modèle commercial, elle est appelée "la version industrielle de Pinduoduo" et "la version industrielle de JD.com".
À propos de Beijing TDD E-commerce Co., Ltd.
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Beijing TDD E-commerce Co., Ltd. (nommée TDD Global) est la filiale principale de Guolian Corporation (Code boursier : 603613.SH) et la première plateforme Internet industrielle des plateformes de la série Duoduo. L'entreprise est principalement engagée dans les services de transaction de commerce électronique B28 de matières premières et de produits industriels, les services de chaîne d'approvisionnement numérique, les services de numérisation industrielle et les services de grandes données industrielles, et s'engage à promouvoir l'intégration profonde des industries traditionnelles et des nouvelles technologies telles qu'Internet, l'Internet des objets, les grandes données, la fabrication intelligente et la chaîne de blocs, etc.
Notre entreprise propose une variété de produits pouvant répondre à vos demandes multiples. Nous adhérons aux principes de gestion de "qualité d'abord, client d'abord et basé sur le crédit". Depuis la création de l'entreprise, nous faisons toujours de notre mieux pour satisfaire les besoins potentiels de nos clients.
Notre entreprise est sincèrement disposée à coopérer avec des entreprises du monde entier afin de réaliser une situation gagnant-gagnant, car la tendance de la mondialisation économique s'est développée avec une force irrésistible. |
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