2K epoxy raw material combination consisting of WL-AD203 epoxy dispersion and WL-AC040 water-based epoxy curing agent. The coating produced by this combination has the characteristics of rapid surface drying, salt spray resistance of more than 300 hours, and initial water resistance of more than 15 days. It is a low-cost, cost-effective 2K epoxy ideal combination for metal primers.
According to the customer needs of the automotive parts coatings, based on the two- component epoxy primer produced by the above materials, we chose a topcoat produced with a one- component acrylic resin to form a set of primer and topcoat material systems for the anti-corrosion and anti-rust requirements of metal accessories such as automobile axles, frames, and chassis, which well meets the material needs of coating manufacturers.
WL-AD203 Epoxy resin
| Appearance | Milky white liquid |
| Non-volatile matter (Wt, %) | 53±2 |
| Viscosity(mPa.s)(25℃) | 500 ~ 8000 |
| Epoxy equivalent (supplied form) (g/Eq) | 1010±50 |
WL-AD203 is a water-based epoxy dispersion. When used with the recommended water-based epoxy curing agent, it can be used to prepare high-performance water-based epoxy coatings, designed for anti-corrosion primers and epoxy floor paints for various metal substrates
Features: fast surface drying, suitable for various wet-on-wet matching processes, rapid hardness build-up, long application period
WL-AC040 Epoxy curing agent
| Item | Value | Testing Method |
| Appearance | Light yellow transparent liquid | Visual |
| Non-Volatile content(%) | 40±2 | GB/T 1725-2007 |
| Viscosity(mPa.s)(25℃) | 2000~8000 | GB/T 21059-2007 |
| Active hydrogen equivalent | 300±10 | ---- |
WL-AC040 is a water-soluble modified polyamine adduct, recommended for use with waterborne epoxy resin, designed for anti-corrosion primers and epoxy floor paints for various metal substrates.
Features: fast curing speed, short surface drying time, excellent adhesion, long application period, and extremely high cost performance
WL-SP1000 is a water-based emulsion of acrylic copolymer.
Features: excellent gloss, excellent initial water resistance, good water resistance, strong versatility, suitable for primer and topcoat of various metal substrates.
| Item | Value | Testing Method |
| Appearance | Milky white liquid | Visual |
| Non-Volatile content(%) | 47±1 | GB/T1725-2007 |
| Viscosity(mPa.s)(25℃) | 50~500 | GB/T 21059-2007 |
| PH | 7.0~9.0 | GB/T 9724-2007 |
| Minimum film forming temperature (°C) | 40 | - |
A set of coating test data consisting of WL-AD203 epoxy/WL-AC040 curing agent primer + WL-SP1000 single component topcoat
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Excellent Initial Water Resistance Epoxy Resin Combination For Automotive Axles And Chassis Images
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