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Chromium-free pretreatment passivation solution for zinc-aluminum-magnesium color coating
Details
Product Name: ZAM color coating chrome-free pretreatment passivation solution (model: PA-3)
Performance Characteristics: excellent bonding force and corrosion resistance
product Name:
PH Value: 2.5±1.0
Specific Gravity: 1.04±0.03 g/cm³
Recommended PMT: 70-80℃
Recommended Film Weight Range: Ti 3-8mg/㎡
Performance Summary
| Test Name | Condition | Require | result | |
| T Bend | GBT 13348 | ≤3T | 2t | Qualified |
| Reverse Impact | GBT 13348 | 9J | 9J | Qualified |
| Flat Salt Spray | ASTM117 | 1000h, ≤ level 3 | Level 2 | Qualified |
| Dashed Salt Spray | Scribing Knife X-Ray | 1000h, Unilateral Corrosion ≤ 4mm | 2mm | Qualified |
| Trimmed Salt Spray | All around cut without edge | 1000h, Unilateral Corrosion ≤ 20mm | 13mm | Qualified |
| Butanone-Resistant | 100 Rounds | No Primer | No Primer | Qualified |
| Acid Resistant | 5%HCI Soaked | 24h, ≤Level 4 | Level 3 | Qualified |
| Alkali Resistance | 5% NaOH Soaking | 24h, ≤Level 4 | Level 1 | Qualified |
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