JW-813 Trivalent Chromium Blue-White Passivation Agent
JW-813 trivalent chromium blue-white passivation agent is an environmentally friendly passivation product; the passivation solution contains no hexavalent chromium.
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Detailed description:
01
JW-813 trivalent chromium blue-white passivation agent is an environmentally friendly passivation product; the passivation solution contains no hexavalent chromium.
02
Easy to apply, with even and rich color.
03
Excellent corrosion resistance, with a neutral salt spray test duration of 72 hours.
04
Can be used for all post‑galvanizing treatments.
Process and Operating Procedures
Galvanizing → Three-stage water rinsing → Activation → Water rinsing → Trivalent blue passivation → Water rinsing → Hot-air drying
Idemitsu
| 67.5% nitric acid | 3–8 ml/L | ||||
| Temperature | Room temperature | ||||
| Time | 5–20 seconds |
Trivalent blue passivation
| JW—813 | 30–60 ml/L |
| pH value | 1.8–2.8 |
| Temperature | Room temperature |
| Time | 15–45 seconds |
| Stir | Air stirring |
Keywords:
JW-813 Trivalent Chromium Blue-White Passivation Agent
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