GBASEA Barium Sulfate Extinction 20HB for Coatings with Excellent Hiding Power
Product Overview
GBASEA Barium Sulfate Extinction 20HB is a premium-grade, micronized barium sulfate extender engineered to deliver exceptional opacity, chemical resistance, and rheological control in industrial and decorative coatings. With a controlled particle size distribution (D50: 0.7–1.2 µm) and ultra-low oil absorption (14–18 g/100g), this high-purity (≥98.5%) extender enhances hiding power by up to 30% compared to conventional calcium carbonate or talc, enabling formulators to reduce TiO2 loading while maintaining film integrity and gloss uniformity.
Specifically designed for waterborne, solvent-borne, and powder coating systems, Extinction 20HB acts as a multifunctional additive:
- TiO2 Extender: Improves pigment spacing efficiency, maximizing TiO2 utilization.
- Corrosion Inhibitor: Chemically inert barrier against acids, alkalis, and salt spray (ASTM B117).
- Matting Agent: Delivers consistent semi-gloss to matte finishes (60° gloss: 5–25 GU).
- Density Modifier: Balances sag resistance and sprayability in high-build coatings.
Certified under REACH, RoHS, and ISO 9001, this barium sulfate is a sustainable alternative to critical raw materials, aligning with VOC reduction goals and circular economy principles.
Key Features & Competitive Advantages
Unmatched Hiding Power & Opacity
- TiO2 Optimization: Reduces titanium dioxide usage by 15–25% while maintaining equivalent contrast ratio (ISO 6504-1: ≥95%).
- Pigment Spacing: Monodisperse particles prevent TiO2 agglomeration, enhancing light scattering efficiency.
- Refractive Index (1.64): Bridges the gap between binders (1.5) and TiO2 (2.7) for optimal light diffusion.
Superior Processing & Film Properties
- Low Oil Absorption (14–18 g/100g): Minimizes resin demand, lowering formulation costs.
- Thixotropy Control: Pseudoplastic rheology for anti-settling stability and brush/roll application ease.
- Film Reinforcement: 20% improvement in pencil hardness (H–2H) and scrub resistance (ASTM D2486).
Extreme Environmental Resistance
- pH Stability (2–12): Withstands acidic rain, alkaline cleaners, and marine environments.
- UV Inertness: Zero chalking or yellowing after 1,000+ hours QUV-B exposure (ASTM G154).
- Thermal Stability: No decomposition below 1,580°C, ideal for powder coatings and automotive exhaust systems.
Sustainability & Compliance
- Heavy Metal-Free: Complies with EU Toy Safety Directive EN71-3 and FDA 21 CFR for food-contact coatings.
- Low Carbon Footprint: Production powered by 70% renewable energy with closed-loop water recycling.
- Dust-Free Granules: Safe handling with ≤0.1% respirable particles (OSHA PEL standards).
Technical Differentiation: Extinction 20HB vs. Conventional Extenders
| Property | Extinction 20HB | Calcium Carbonate | Talc |
|---|---|---|---|
| Oil Absorption (g/100g) | 14–18 | 25–35 | 30–45 |
| Refractive Index | 1.64 | 1.58 | 1.55 |
| pH Resistance | 2–12 | 5–9 | 5–9 |
| Abrasion Resistance | High | Moderate | Low |
| TiO2 Replacement Potential | 25% | 10% | 8% |
Applications
Extinction 20HB is engineered for high-performance coatings across industries:
1. Architectural & Decorative Coatings
- Interior/Exterior Emulsions: Enhacrylics and silicone-modified resins.
- Wood & Furniture Finishes: UV-curable matte varnishes with anti-fingerprint properties.
- Textured Wall Coatings: Improves crack bridging and impact resistance.
2. Industrial & Protective Coatings
- Heavy-Duty Epoxies: Chemical storage tank linings and offshore platform coatings.
- Zinc-Rich Primers: Extends sacrificial anode life in marine environments.
- Powder Coatings: Flow control agent for appliance and automotive underbody coatings.
3. Automotive & Transportation
- Electrocoat Primers (E-Coat): Reduces cratering and improves throw power.
- Clearcoat Systems: Controlled matting without haze or viscosity spikes.
- Adhesive Sealants: Reinforces shear strength in automotive body panel bonding.
4. Specialty Markets
- Lithium-Ion Batteries: Coating additive for electrode binders to enhance thermal stability.
- 3D Printing: Rheology modifier for photopolymer resins in SLA/DLP systems.
- Cosmetic Packaging: FDA-compliant matte finishes for luxury lipstick casings.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Chemical Composition | ||
| BaSO4 Purity | ≥98.5% | XRF Analysis |
| Moisture Content | ≤0.3% | ISO 787-2 |
| Physical Properties | ||
| Particle Size (D50) | 0.7–1.2 µm | Laser Diffraction (ISO 13320) |
| Specific Gravity | 4.3–4.5 g/cm³ | ISO 787-10 |
| Brightness (ISO) | 92–94% | ISO 2470 |
| Performance Data | ||
| pH (10% Slurry) | 6.5–8.5 | ISO 787-9 |
| Conductivity | ≤200 µS/cm | DIN 53779 |
| LOI (1000°C) | ≤1.0% | TGA (ISO 11358) |
Production Process
Extinction 20HB is manufactured through a 10-stage, zero-waste process:
- Ore Selection: Natural baryte ore with ≤0.01% heavy metals.
- Crushing & Grinding: Jaw crushers and Raymond mills to 200-mesh fineness.
- Purification: Acid leaching (HCl) to remove silica and iron impurities.
- Micronization: Wet grinding with zirconia beads to submicron sizes.
- Surface Modification: Stearic acid coating for hydrophobic compatibility.
- Filtration: Membrane filtration to 99.9% purity.
- Drying: Spray drying at 180°C with dehumidified air.
- Classification: Air-jet sieving to eliminate +5 µm particles.
- Quality Control: ICP-OES for heavy metals, BET for surface area.
- Packaging: 25 kg multi-layer anti-moisture bags with palletization.
Why Choose GBASEA Extinction 20HB?
Technical Excellence
- Patented micronization technology for narrow particle size distribution.
- Customizable surface treatments (silane, titanate, or non-ionic).
Global Compliance
- Full REACH registration, UK REACH, and Korea K-REACH compliance.
- Halogen-free, APEO-free, and TSCA-listed for global market access.
Sustainability Commitment
- 100% recyclable packaging and 90% process water reuse.
- Carbon footprint: 1.2 kg CO2/kg (50% below industry average).
Application Support
- Free formulation audits to optimize TiO2/barium sulfate ratios.
- On-site technical training for dispersion and viscosity control.
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| 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 | ||
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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.
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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. |
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