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Water-dispersible amine curing agent for epoxy resins, enabling low-VOC and solvent-free formulations.
Offers balanced reactivity with extended pot life at ambient temperature, supporting efficient processing.
Delivers excellent chemical resistance and mechanical performance in cured epoxy coatings.
Compatible with standard bisphenol-A and bisphenol-F epoxy dispersions for broad formulation flexibility.
Provides good adhesion to steel, concrete, and aluminum substrates without primer requirement.
Industrial maintenance coatings for steel structures and pipelines.
Concrete floor coatings in warehouses, factories, and food processing facilities.
Marine and offshore protective coatings requiring corrosion resistance.
Electrical insulation coatings for transformers and busbars.
High-performance tank linings for water storage and chemical containment.
| Chemical Type | Aliphatic polyamine adduct, water-dispersible |
| Product Form | Liquid dispersion |
| Appearance | Opaque white to off-white dispersion |
| pH (10% aqueous dispersion) | 9.0 – 10.5 |
| Solids Content (wt%) | 44 – 46 |
| Viscosity (Brookfield, RVT, #3 spindle, 20 rpm, 25°C) | 1,500 – 3,000 mPa·s |
| Density (20°C) | 1.08 – 1.12 g/cm³ |
| Free Amine Value (mg KOH/g) | 280 – 320 |
Q1: What is the primary function of BECKOPOX EM 2120w 45WA in epoxy systems?
A: BECKOPOX EM 2120w 45WA is a waterborne amine curing agent designed to crosslink epoxy resins—particularly water-dispersible or solid epoxy dispersions—enabling ambient- or low-temperature cure profiles while delivering good chemical resistance and mechanical performance in final coatings.
Q2: Is this curing agent compatible with high-solids or 100% solids epoxy resins?
A: BECKOPOX EM 2120w 45WA is specifically formulated for use with waterborne epoxy dispersions and is not recommended for direct use with high-solids or 100% solids epoxy systems due to incompatibility with low-water-content environments and potential phase separation issues.
Q3: How does the “45WA” designation relate to product handling and formulation stability?
A: The “45WA” indicates a water-based formulation with approximately 45% active amine content. This contributes to lower VOC, improved workplace safety, and easier handling versus solvent-borne alternatives—but requires attention to pH control and mixing order to maintain dispersion stability during incorporation.
Q4: Can BECKOPOX EM 2120w 45WA be used in food-contact or industrial maintenance coatings?
A: While the product is designed for industrial protective and maintenance coatings—including metal primers and concrete sealers—it is not pre-qualified for food-contact applications. Formulators must conduct full regulatory assessment and migration testing as part of their finished coating qualification process.
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E-mail: wangxingqiang@ericwchem.com
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