Phosphate Ester Adhesion Promoter (Metal Substrate, Solventborne/Waterborne)
CAS 68130-47-2
In StockMOQ
200 kg
Lead Time
5–10 days
Packaging
25 kg drums
Specifications
| Active Content | ~85% (phosphate ester in butanol) |
| Acid Value | 80–120 mg KOH/g |
| Viscosity (25°C) | 200–800 mPa·s |
| Phosphorus Content (P%) | 10–14% |
| Compatibility | Epoxy, acrylic, alkyd, PU resins |
| Addition Level | 0.5–3.0% on total binder solids |
FAQ
Phosphate ester groups chelate with surface metal oxides (Fe, Zn, Al) forming a covalent metal-phosphate bond at the interface. This creates a chemical link between the coating and substrate, replacing the need for wash primers or chromate conversion coatings in many direct-to-metal (DTM) applications.
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