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

1. ‌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.

2. ‌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).

3. ‌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.

4. ‌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

‌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

‌Production Process‌

Extinction 20HB is manufactured through a 10-stage, zero-waste process:

1. ‌Ore Selection:‌ Natural baryte ore with ≤0.01% heavy metals.
2. ‌Crushing & Grinding:‌ Jaw crushers and Raymond mills to 200-mesh fineness.
3. ‌Purification:‌ Acid leaching (HCl) to remove silica and iron impurities.
4. ‌Micronization:‌ Wet grinding with zirconia beads to submicron sizes.
5. ‌Surface Modification:‌ Stearic acid coating for hydrophobic compatibility.
6. ‌Filtration:‌ Membrane filtration to 99.9% purity.
7. ‌Drying:‌ Spray drying at 180°C with dehumidified air.
8. ‌Classification:‌ Air-jet sieving to eliminate +5 µm particles.
9. ‌Quality Control:‌ ICP-OES for heavy metals, BET for surface area.
10. ‌Packaging:‌ 25 kg multi-layer anti-moisture bags with palletization.

‌Why Choose GBASEA Extinction 20HB?‌

1. ‌Technical Excellence‌

   • Patented micronization technology for narrow particle size distribution.
   • Customizable surface treatments (silane, titanate, or non-ionic).

2. ‌Global Compliance‌

   • Full REACH registration, UK REACH, and Korea K-REACH compliance.
   • Halogen-free, APEO-free, and TSCA-listed for global market access.

3. ‌Sustainability Commitment‌

   • 100% recyclable packaging and 90% process water reuse.
   • Carbon footprint: 1.2 kg CO2/kg (50% below industry average).

4. ‌Application Support‌

   • Free formulation audits to optimize TiO2/barium sulfate ratios.
   • On-site technical training for dispersion and viscosity control.

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!