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Black, fine and smooth Water based top coat with corrosion protection assistant
1 General description
The main ingredient is water-base inorganic silica , mixed with corrosion protection assistant.The product cost is
low.
2 Perfomance charcteisic
The coating layer is smooth, weak acid and alkali resistant, can be adjusted to any colour with paint.
3 Main Technical Data
| No. | Item | Data | Test method |
| 1 | Appearance | Black,fine and smooth | Eye-measurement |
| 2 | Viscosity S≥ | 50 | GB/T1723-93 second method |
| 3 | PH | 8.0-9.0 | PH-meter |
| 4 | Drying Time 140ºC/min | 30 | GB/T6751-86 |
| 5 | Von-volatile% ≥ | 30 | GB/T6751-86 |
| 6 | Thickness of dry film (micron) | 10-20 | GB/T1764-79 (89) second method |
| 7 | Adhesion(degree)≤ | 1 | GB/T9286-1998 |
| 8 | Bend(mm) | 1 | GB/T1731-93 |
| 9 | Hardness≥ | 1 | GB/T1731-93 |
| 10 |
| 50 | GB/T1732-93 |
| 11 | heat and humidity resistance (h) | 240 | GB/T1740 70(80) |
4 Instructions and attention:
Dip coating,Spray coating etc.
It should be stirred fully befor usage; distilled water or deionized water can be used to adjust viscosity ;Operating
viscosity:30-60s.
When the environment humidity higher than 85%,can add certain industrial alcohol to adjust viscosity
Curing condition: 80/10min+140/30min
Cleaning appliance: running water can be used
Avoid acid substances, or polymerization and deterioration will happen.
This product can be
