Phosphate Ester Aluminum Inhibitor
Phosphate Ester Aluminum Inhibitor
Phosphate ester aluminum inhibitor is a professional water‑based additive, mainly used to prevent discoloration and corrosion of aluminum alloy and non‑ferrous metals in metalworking fluids. It forms a compact protective film on the metal surface, effectively solving common problems such as aluminum whitening, blackening and spot corrosion during cutting, grinding and stamping. It offers stable performance in hard‑water systems, and has good miscibility with emulsifiers, rust inhibitors and other common additives in formula.
Typical Specifications
| Item | Specification |
|---|---|
| Appearance | Light yellow transparent liquid |
| Acid value (mgKOH/g) | 180‑220 |
| Phosphorus content | 7.5%‑9.0% |
| pH (1% aqueous solution) | 2.0‑3.5 |
| Water solubility | Completely water dispersible |
| Density (25℃, g/cm³) | 1.10‑1.25 |
| Flash point | ≥100℃ |
Application & Compatibility
It is widely applied in emulsion, semi‑synthetic and fully‑synthetic aluminum working fluids, including aluminum cutting fluid, grinding fluid, stamping fluid and rolling fluid. This additive shows excellent compatibility with most rust inhibitors, emulsifiers and auxiliary extreme‑pressure additives, and will not cause precipitation or stratification in a reasonable formula system.
Packaging Options
1. 200L sealed metal drum
2. 1000L IBC tote tank
Storage Conditions
Store in a cool, dry, ventilated warehouse, avoid direct sunlight
Shelf life: 12 months under proper storage