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Environmentally compliant, heavy-metal-free formulation meeting RoHS and REACH requirements.
Excellent passivation effect on steel substrates, forming a protective barrier against chloride and sulfate ions.
High thermal stability up to 200°C, maintaining anti-corrosive performance in demanding curing processes.
Good dispersion stability in both water-based and solvent-based epoxy and alkyd resin systems.
Enhanced pigment volume concentration (PVC) tolerance without compromising film integrity or adhesion.
Marine coatings for offshore platforms and ship hulls.
Industrial maintenance coatings for steel bridges and structural frameworks.
Oil & gas infrastructure coatings including pipelines and storage tanks.
Railway vehicle undercarriage and bogie protection systems.
Heavy-duty equipment coatings for mining and construction machinery.
| Chemical Type | Modified zinc phosphate-based hybrid pigment |
| Product Form | Fine dry powder |
| Appearance | Greenish-gray free-flowing powder |
| Primary Applications | Anti-corrosive primers and intermediate coats |
| Key Features | Passivation, pH buffering, low water solubility |
| Benefits | Extended service life, reduced blistering, improved cathodic protection synergy |
| pH (10% aqueous suspension) | 7.2–7.8 |
| Moisture Content (wt%) | ≤0.5% |
Q1: What is the primary corrosion-inhibition mechanism of Cathay FERROTINT Green F16B?
A: Cathay FERROTINT Green F16B functions primarily through passive film formation on ferrous metal substrates. Its active components promote the development of a stable, adherent oxide layer that impedes electrochemical corrosion processes, particularly under humid or mildly aggressive environmental conditions.
Q2: Is this pigment suitable for water-based coatings?
A: Yes, Cathay FERROTINT Green F16B is specifically engineered for compatibility with aqueous systems, including acrylic, styrene-acrylic, and polyvinyl acetate dispersions. It demonstrates good dispersion stability and minimal impact on pH sensitivity in properly formulated waterborne anti-corrosive primers.
Q3: How does it compare to traditional zinc phosphate pigments in terms of environmental profile?
A: Unlike conventional zinc phosphate, Cathay FERROTINT Green F16B is formulated without heavy metals such as zinc, lead, or chromium. It aligns with evolving regulatory expectations for reduced ecotoxicity and offers a more sustainable alternative while maintaining effective corrosion resistance in industrial maintenance and general-purpose protective coatings.
Q4: What types of binders show optimal compatibility with this pigment?
A: Cathay FERROTINT Green F16B performs well in epoxy ester, alkyd, modified acrylic, and hybrid resin systems. Compatibility is strongest when the binder provides moderate polarity and sufficient film integrity to support pigment–matrix interaction; pre-dispersion and controlled pH during formulation are recommended for best results.
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E-mail: wangxingqiang@ericwchem.com
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