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Environmentally compliant, heavy-metal-free formulation meeting RoHS and REACH requirements.
Excellent long-term corrosion inhibition for ferrous substrates in aggressive industrial atmospheres.
High thermal stability enabling compatibility with baking finishes up to 200°C.
Optimized particle size distribution for improved dispersion and enhanced barrier performance in coatings.
Low water-soluble ion content minimizing risk of osmotic blistering in protective coating systems.
Industrial maintenance coatings for offshore platforms and marine infrastructure.
Anti-corrosive primers for structural steel in petrochemical and power generation facilities.
Underbody and chassis coatings for heavy-duty commercial vehicles.
Protective coatings for bridges, transmission towers, and water treatment plants.
Two-component epoxy and polyurethane systems requiring high-performance, non-toxic pigment alternatives.
| Chemical Type | Strontium calcium phosphosilicate complex |
| Product Form | Fine dry powder |
| Appearance | Light green to greyish-green free-flowing powder |
| Primary Applications | Anti-corrosive primers, industrial maintenance coatings, protective topcoats |
| Key Features | Non-toxic, low-VOC compatible, alkali-stable, non-bleeding |
| Benefits | Reduces zinc dependency, enhances film integrity, extends service life of coated assets |
| pH (10% aqueous slurry) | 7.5 – 8.5 |
| Specific Gravity | 3.2 – 3.6 g/cm³ |
Q1: What is the primary corrosion inhibition mechanism of CATHAYGRAN Green F17BGS?
A: CATHAYGRAN Green F17BGS functions primarily through passive film formation on metal substrates, leveraging its optimized inorganic composition to enhance barrier protection and promote surface passivation—particularly effective in low- to medium-corrosivity environments.
Q2: Is this pigment suitable for water-based coating systems?
A: Yes, CATHAYGRAN Green F17BGS is specifically engineered for compatibility with both solvent-borne and water-based anticorrosive coatings, including acrylic, epoxy, and polyurethane dispersions—offering good dispersion stability and minimal impact on rheology or drying behavior.
Q3: How does it compare to traditional zinc phosphate pigments in terms of environmental profile?
A: Unlike conventional zinc phosphate, CATHAYGRAN Green F17BGS is formulated without heavy metals such as lead, cadmium, or hexavalent chromium, aligning with evolving global regulatory expectations for safer, more sustainable anticorrosive additives.
Q4: What is the recommended dosage range for optimal performance?
A: Dosage depends on formulation requirements and target performance level, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight relative to total solids—to balance efficacy, cost, and coating properties.
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