Chromium(III) phosphate STD-CP 4295
Coating raw materials 2025-07-17
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 | [g/cm3] | 2.4 |
| Bulk density | [kg/l] | 0.6 |
| Oil adsorption | [g/100 g] | 65 |
| pH-Value | 5.9 | |
| Conductivity | [µS/cm] | ＜500 |
| Sieve Residue | [%] 44µm，325 mesh | ＜0.2 |
| Content of Cr3+ | [%] | 27.0 |
| Content of PO43 | [%] | 46.0 |
| Content of Sulfate, Nitrate, Chloride | [%] | ＜0.1 |
| Moisture | [%] | 2.5 |
| Loss on Ignition | [%] | 27.2 |
Applications
| Long oil alkyds | ++ | Epoxies and epoxyesters | + |
| Medium and short oil alkyds | + | Aqueous Epoxies + 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 | +++ | Powder coatings | ++ |
