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Chromium-free passivation agent for coil aluminum color coating
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Details
Product Name: Chromium-free passivator for prepainted aluminum coils (Model: PA-2)
Performance Characteristics: It is suitable for passivation treatment before color coating of aluminum plates, improving paint adhesion and corrosion resistance.
Product Name:
PH Value: 1.4 ± 0.1
Specific Gravity (20°C): 1.030土0.02g/cm³
Total Acid (take 10mL from 100g/L): 8±1
Recommended PMT: >70-90℃
Recommended Film Weight Range: Zr film weight 5-20mg/m²
Application Concentration: 10-90% (actual parameters depend on the production line)
Product Performance Test Results & Performance Summary
| Test Name | Condition | Require | Result | |
| Solvent Resistance | MEK Wipe | Wipe 100 times without falling off | No Shedding | Qualified |
| Acid Resistance | 2% HCL Solution | No foaming and falling off after dripping for 24 hours | (No Blistering and Falling Off) | Qualified |
| Alkali Resistance | 2%NaOH Solution | No foaming and falling off after dripping for 24 hours | (No Blistering and Falling Off) | Qualified |
| Paintability | Scratch the grid + peel off the tape | Peeling Area≤5% | 0 | Qualified |
| 9J Shock + Peel Tape | Peeling Area≤5% | 0 | Qualified | |
| Before boiling water for 2 hours + 100 grids + 6mm cup protrusion + peeling tape |
Peeling Area≤5% | 0 | Qualified | |
| After boiling water for 2 hours + 100 grids + 6mm cup protrusion + peeling tape |
Peeling Area≤5% | 0 | Qualified |
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Customer service hotline:13696517500/13917913722
Service time:8:00-18:00
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