Chromium(III) phosphate STD-CP 4295
Introduction
Chemical Structure
Chromium(III) phosphate
Anticorrosive pigment providing adhesion promotion based on Chromium(III) phosphate.
Often used in combination with other STD pigments.
Pigment Data
Density: 2.4 g/cm³
Bulk density: 0.6 kg/l
Oil adsorption: 65 g/100 g
pH: 5.9
Conductivity: <500 μS/cm
Sieve Residue: <0.2% (44 μm, 325 mesh)
Cr³⁺ Content: 27.0%
PO₄³⁻ Content: 46.0%
Sulfate, Nitrate, Chloride Content: <0.1%
Moisture: 2.5%
Loss on Ignition: 27.2 %
Applications
Long oil alkyds: ++; Epoxies and epoxyesters: +
Medium and short oil alkyds: +; Aqueous epoxies and epoxyesters: +
Water reducible alkyds: +; Solvent-based polyurethanes: +
Saturated polyesters: ++; Aqueous 1-pack polyurethanes: ++
Unsaturated polyesters: +++; Aqueous 2-pack polyurethanes: ++
Aqueous polyesters: +; Silicate-bound systems: +++
Aqueous acrylates: +; Silicone resins: +
Radiation-curing acrylates acrylates):+++; Powder coatings:++
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