GBASEA Natural Barium Sulfate Extinction B125 for Industrial Coatings

Product Overview‌

GBASEA Natural Barium Sulfate Extinction B125 is a high-purity, micronized natural barium sulfate extender engineered to optimize opacity, rheology, and durability in demanding industrial coating systems. Sourced from premium baryte ore and refined through a zero-waste process, B125 delivers ‌20–30% higher hiding power‌ compared to conventional calcium carbonate or talc, enabling formulators to reduce TiO2 usage by ‌15–25%‌ while maintaining film integrity and gloss uniformity.

With a controlled particle size distribution (D50: 1.5–2.5 µm) and ultra-low oil absorption (16–20 g/100g), B125 excels in solvent-borne, waterborne, and powder coatings, offering multifunctional benefits:

• ‌TiO2 Extender:‌ Maximizes pigment spacing efficiency for enhanced light scattering.
• ‌Chemical Shield:‌ Inert barrier against acids, alkalis, and salt spray (ASTM B117).
• ‌Rheology Modifier:‌ Pseudoplastic flow for sag resistance and sprayability in high-build coatings.
• ‌Matting Agent:‌ Achieves semi-gloss to matte finishes (60° gloss: 10–30 GU).

Certified under REACH, RoHS, and ISO 14001, B125 aligns with circular economy principles, offering a sustainable alternative to synthetic extenders with a ‌50% lower carbon footprint‌ than precipitated barium sulfate.

‌Key Features & Competitive Advantages‌

1. ‌Unmatched Opacity & Cost Efficiency‌

   • ‌High Refractive Index (1.64):‌ Bridges the gap between binders (1.5) and TiO2 (2.7) for optimal light diffusion.
   • ‌TiO2 Reduction:‌ Slashes titanium dioxide consumption by 15–25% without compromising contrast ratio (ISO 6504-1: ≥95%).
   • ‌Low Oil Absorption (16–20 g/100g):‌ Minimizes resin demand, reducing formulation costs by up to 18%.

2. ‌Superior Processing & Durability‌

   • ‌Thermal Stability (1,600°C):‌ No decomposition in powder coatings or high-temperature automotive systems.
   • ‌Chemical Inertness (pH 2–12):‌ Resists acidic rain, alkaline cleaners, and marine corrosion.
   • ‌Abrasion Resistance:‌ 25% improvement in scrub resistance (ASTM D2486) and pencil hardness (H–2H).

3. ‌Eco-Certified & Sustainable‌

   • ‌Natural Sourcing:‌ Mined from low-heavy-metal baryte deposits (≤10 ppm Pb/Cd/As).
   • ‌Closed-Loop Production:‌ 90% process water recycling and 70% renewable energy usage.
   • ‌Dust-Free Granules:‌ OSHA-compliant handling with ≤0.2% respirable particles.

4. ‌Multifunctional Versatility‌

   • Compatible with epoxy, polyurethane, acrylic, and silicone-modified resins.
   • Enhances conductivity control in E-coat primers and anti-static floor coatings.

‌Technical Differentiation: B125 vs. Conventional Extenders‌

‌Applications‌

B125 is engineered for high-performance coatings across industries:

‌1. Protective & Industrial Coatings‌

• ‌Marine & Offshore:‌ Anticorrosive primers for ship hulls, oil rigs, and coastal infrastructure.
• ‌Chemical Tank Linings:‌ Epoxy/phenolic coatings resistant to sulfuric acid, caustic soda, and solvents.
• ‌Powder Coatings:‌ Flow control agent for appliance finishes and automotive underbody coatings.

‌2. Automotive & Transportation‌

• ‌E-Coat Primers:‌ Reduces cratering and improves throw power in electrodeposition systems.
• ‌Thermal Barrier Coatings:‌ High-temperature stability for exhaust systems and engine components.
• ‌UV-Curable Clears:‌ Controlled matting without haze or viscosity spikes.

‌3. Architectural & Decorative Coatings‌

• ‌Exterior Emulsions:‌ Enhances weatherability and crack resistance in silicone-acrylic renders.
• ‌Textured Finishes:‌ Improves impact resistance and adhesion on concrete and masonry.
• ‌Low-VOC Waterborne Systems:‌ Compliant with EU Decopaint Directive 2004/42/EC.

‌4. Specialty Markets‌

• ‌3D Printing:‌ Rheology modifier for photopolymer resins in SLA/DLP systems.
• ‌Lithium-Ion Batteries:‌ Coating additive for electrode binders to prevent thermal runaway.
• ‌Packaging Inks:‌ FDA-compliant matting agent for food-safe labels and flexible packaging.

‌Technical Specifications‌

‌Production Process‌

B125 is manufactured through a 10-stage, zero-waste process:

1. ‌Ore Selection:‌ Natural baryte ore with ≤10 ppm heavy metals.
2. ‌Crushing & Grinding:‌ Jaw crushers and ball mills to 200-mesh fineness.
3. ‌Purification:‌ Acid-free flotation to remove silica and iron oxides.
4. ‌Micronization:‌ Wet grinding with ceramic beads to sub-3 µm particles.
5. ‌Surface Modification:‌ Stearic acid coating for hydrophobic compatibility.
6. ‌Filtration:‌ Ultrafiltration to 99.9% purity.
7. ‌Drying:‌ Rotary drying at 200°C with dehumidified air.
8. ‌Classification:‌ Air-jet sieving to eliminate +5 µm particles.
9. ‌Quality Control:‌ ICP-MS for heavy metals, BET for surface area.
10. ‌Packaging:‌ 25 kg moisture-resistant PE bags with UV-blocking outer layers.

‌Why Choose GBASEA B125?‌

1. ‌Technical Excellence‌

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

2. ‌Global Compliance‌

   • Full REACH, UK REACH, and Korea K-REACH registration.
   • Halogen-free, APEO-free, and TSCA compliant.

3. ‌Sustainability Leadership‌

   • 100% recyclable packaging and 90% closed-loop water usage.
   • Carbon footprint: 0.8 kg CO₂/kg (60% below industry average).

4. ‌Application Support‌

   • Free formulation audits to optimize TiO2/BaSO4 ratios.
   • On-site technical training for dispersion and viscosity control.

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