Wufeng Weitai Barium Sulfate for Rubber WT-088 for High-Performance Rubber
Product Overview
Wufeng Weitai Barium Sulfate WT-088 is a specialized micronized barium sulfate engineered to enhance the mechanical properties, processability, and durability of rubber compounds across automotive, industrial, and consumer goods industries. With a tightly controlled particle size distribution (D50: 1.2–1.8 µm) and ultra-high purity (BaSO₄ ≥98.5%), this filler delivers 20–30% higher tensile strength, 15–25% improved abrasion resistance, and 40–50% lower compression set compared to conventional calcium carbonate or clay extenders.
Sourced from natural high-grade baryte ore in Hubei Province and refined through a zero-waste, ISO 9001-certified process, WT-088 optimizes rubber formulations for applications requiring extreme thermal stability (-50°C to 300°C), chemical resistance (pH 1–14), and dynamic load endurance. Its low oil absorption (14–18 g/100g) and hydrophobic surface treatment ensure seamless dispersion in SBR, NBR, EPDM, and silicone rubber matrices, reducing processing energy by 10–15% while maintaining cost efficiency.
Certified under REACH, RoHS, and ISO 14001, WT-088 is the sustainable choice for manufacturers prioritizing performance, regulatory compliance, and ESG goals.
Key Features & Competitive Advantages
Mechanical Reinforcement
- Tensile Strength: Enhances SBR/NBR tensile strength to 25–30 MPa at 20–30% loading (ISO 37).
- Tear Resistance: Improves die-c tear resistance by 35–40% in EPDM seals (ASTM D624).
- Compression Set: Reduces compression set to ≤15% (70h @ 150°C, ASTM D395).
Thermal & Chemical Resilience
- High-Temperature Stability: Withstands continuous operation at 250°C (short-term 300°C) in silicone rubber.
- Acid/Alkali Resistance: Maintains integrity after 168h immersion in 10% H₂SO₄ or NaOH (ASTM D471).
- Oil/Fuel Resistance: ≤10% volume swell in IRM 903 oil (ASTM D471).
Processing Efficiency
- Low Oil Absorption (14–18 g/100g): Redizes polymer demand by 12–15%, lowering formulation costs.
- Fast Dispersion: Achieves 95% Hegman fineness within 8–10 minutes (ASTM D2663).
- Mooney Viscosity Control: Maintains ML(1+4) @ 125°C below 50 for EPDM compounds (ASTM D1646).
Sustainability & Safety
- Heavy Metal-Free: Compliant with EU ELV Directive (Pb/Cd/As ≤5 ppm).
- Low Carbon Footprint: 0.8 kg CO₂/kg (50% below synthetic alternatives).
- Dust-Free Granules: OSHA-compliant with ≤0.2% respirable particles.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Composition | ||
| BaSO₄ Purity | ≥98.5% | XRF Analysis (ISO 29581) |
| Moisture Content | ≤0.3% | ISO 787-2 |
| Physical Properties | ||
| Particle Size (D50) | 1.2–1.8 µm | Laser Diffraction (ISO 13320) |
| Specific Gravity | 4.3–4.5 g/cm³ | ISO 787-10 |
| Oil Absorption | 14–18 g/100g | ISO 787-5 |
| Performance Data | ||
| pH (10% Slurry) | 6.5–7.5 | ISO 787-9 |
| Conductivity | ≤150 µS/cm | DIN 53779 |
| LOI (1,000°C) | ≤0.5% | TGA (ISO 11358) |
Application-Specific Benefits
1. Automotive Rubber Components
- Engine Mounts: Enhances vibration damping and fatigue resistance (10⁷ cycles @ 100°C).
- Tire Sidewalls: Improves ozone resistance (ASTM D1149) and flex cracking resistance (ASTM D430).
- Seals & Gaskets: Reduces compression set in NBR/HNBR compounds by 40% (ASTM D395).
2. Industrial Rubber Products
- Conveyor Belts: Boosts abrasion resistance (DIN 53516: ≤80 mm³ loss) and RMA Grade 1 compliance.
- Hydraulic Hoses: Withstands 3,000 psi impulse pressure (SAE J343) in synthetic rubber liners.
- Anti-Vibration Pads: Achieves 70–75 Shore A hardness with 15% lower dynamic stiffness.
3. Consumer & Specialty Rubber
- Silicone Kitchenware: FDA 21 CFR compliant for food contact applications.
- Medical Tubing: USP Class VI certification for biocompatibility.
- EV Battery Seals: Halogen-free, flame-retardant grades (UL94 V-0) for lithium-ion battery housings.
4. High-Performance Elastomers
- Fluoroelastomers (FKM): Extends service life in chemical processing seals (pH 1–14 compatibility).
- AEM/ACM Compounds: Enhances heat aging resistance (7-day @ 175°C: ΔTensile ≤20%).
Production Process & Quality Control
- Ore Selection: Natural baryte ore with ≤10 ppm heavy metals (XRF verified).
- Crushing & Grinding: Multi-stage jaw crushers and Raymond mills to 200-mesh.
- Purification: Acid-free flotation to remove silica (≤0.5%) and iron oxides (≤0.03%).
- Micronization: Wet grinding with zirconia beads to submicron fineness (D97 ≤5 µm).
- Surface Treatment: Stearic acid coating (1.0–1.5% w/w) for hydrophobic dispersion.
- Drying & Granulation: Spray drying + granulation for dust-free handling.
- Quality Assurance:
- ICP-MS for heavy metals (Pb/Cd/As ≤5 ppm).
- SEM analysis for particle morphology and dispersion.
- Batch-wise ISO 9001 certification.
Competitive Comparison: WT-088 vs. Alternatives
| Property | WT-088 Barium Sulfate | Precipitated CaCO₃ | Talc (Mg₃Si₄O₁₀(OH)₂) |
|---|---|---|---|
| Tensile Strength | 25–30 MPa | 15–20 MPa | 18–22 MPa |
| Heat Resistance | 250°C (continuous) | 120°C | 200°C |
| Acid Resistance | Excellent (pH 1–14) | Poor (pH <5) | Moderate (pH 4–9) |
| Mooney Viscosity | 45–50 ML(1+4) | 55–60 ML(1+4) | 50–55 ML(1+4) |
| Cost per Ton | $480–520 | $200–250 | $300–350 |
Why Choose Wufeng Weitai WT-088?
Technical Expertise
- Patented surface modification technology for optimized rubber-polymer interaction.
- Customizable particle sizes (0.8–5.0 µm) and coatings (silane, titanate).
Supply Chain Reliability
- 50,000-ton annual capacity with ≤7-day lead time for global shipments.
- On-site R&D support for formulation troubleshooting and optimization.
Sustainability Leadership
- 90% process water recycling and 100% renewable energy-powered production.
- Carbon-neutral logistics via rail and biofuel-powered fleets.
Certifications & Compliance
- Full REACH, UK REACH, Korea K-REACH, and Turkey CLP compliance.
- Halal, Kosher, and FDA certifications for specialized markets.
TDD-Global.com is a professional China chemical B2B marketplace operated by IBI Company, dedicated to promoting global communication, business negotiation, and market expansion in the chemical industry. With a strong network of China chemical product suppliers and international buyers, TDD-Global creates a dynamic and efficient platform for sourcing, trading, and cooperation.
Under the brand name TUDUODUO, TDD-Global has built a trusted reputation among suppliers and buyers in sectors such as fine chemicals, raw materials, industrial additives, and advanced chemical solutions. We offer a wide range of services including product listing, online promotion, supply chain solutions, and international marketing support.
Our platform connects hundreds of verified China chemical suppliers with buyers worldwide, fostering transparent transactions, better business opportunities, and high-value partnerships. Whether you are looking for bulk commodities, specialty chemicals, or customized procurement services, TDD-Global is your go-to platform.
Driven by the innovative spirit of IBI Company, we are committed to building a smarter, faster, and more reliable global chemical trade ecosystem.
If you are interested in cooperation, strategic partnerships, or customized chemical sourcing, please feel free to contact us. Let's shape the future of the chemical industry together!
| Company Name | Beijing TDD E-commerce Co., Ltd | Country/Region | China |
| Business Type | Online Store | Company Size | 2000 |
| Established | December 18, 2014 | ||
| Address | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| Main Products | PVC Resin , PP , PE , Pet , Titanium Dioxide , Pigment , Car Tire | ||
| 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 | ||
About Beijing United Information Technology Co., Ltd.
Beijing United Information Technology Co., Ltd. (Stock Code: 603613. SH), founded in 2002 and listed on the Main Board in July 2019, is mainly engaged in industrial e-commerce and industrial Internet platforms. Based on industrial e-commerce and supported by industrial big data and industrial digitalization, the company provides online commodity trading, business information services and digital technology services of industrial products and raw materials for related industries. In terms of business model, it is called "the industrial version of Pinduoduo" and "the industrial version of JD.com".
About Beijing TDD E-commerce Co., Ltd.
|
Beijing TDD E-commerce Co., Ltd. (shortly named TDD Global) is the core subsidiary of Guolian Corporation (Stock Code: 603613.SH) and the first industrial Internetplatform of Duoduo Series Platforms. The company mainly engages in B28 e-commerce transaction serices of raw material and industrial products, digital supply chain serices, industrial digitalization serices and industrial big data serices, and is committed to promoting the deep integration of traditional industries and new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing and block chain, etc.
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of quot&quality first, customer first and credit-based"Since the establishment of the company and always do our best to satisfy potential needs of our customers.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force. |
 |
Our Advantages:
Rich Experience-over 20 years in industry field
Ranges of products categories with quality guarantee
Competitive&Favourable price
7*24hours thoughtful pre-sale, on-sale, after-sale service
Overseas warehouse with all time delivery
Our services:
In order to better satisfy our customers worldwide and maintain regular customers. Our company takes raw material&industrial product B2B e-commerce transaction service, digital supply chain service, industry digitization service and industry data service as it′s primary business, focusing on promoting the deep integration between new technology and traditional industry, such as Internet, Internet of things, big data, intelligent manufacturing and blockchain.
Send Inquiry
