R·G-33 Low-Chrome Yellow Iridescent Passivation (Hexavalent Chromate)
Performance & Features
- Firm, gorgeous passivation film with excellent corrosion resistance: ≥280 hours salt spray test without white rust, stable color with low discoloration tendency.
- Low-chromium formula, simple wastewater treatment and environmental friendly.
- High impurity tolerance, easy daily bath maintenance.
- Compatible with chloride zinc, cyanide zinc and zincate zinc plating baths.
Operating Parameters
| Item |
Working Range |
| R·G-33 Concentrate |
14–18 g/L |
| Chromic Anhydride |
3–5 g/L |
| pH Value |
1.5–2.0 (adjust with concentrated stock solution) |
| Operating Temperature |
20–40 ℃ |
| Immersion Time |
25–50 seconds |