Coating Thickness DFT μ (Microns) | Type of Paint | ||
---|---|---|---|
Top Coat | Primear | 7 to 8 μ | Polyester / Eproxy |
Top Coat | 12 to 13 μ | Polyester | |
Bottom Coat | Back Coat | 7 TO 8 μ | Polyester Based |
The corrosion resistance of duplex coating is normally greater than the sum of the lives of two individual constituents of the coating if applied separately, (Zinc and paint). Typically the increase factor of color coated sheets vis-a-vis zing coated sheets is as fallows.
S. N | Climates | Life Increase |
---|---|---|
1. | Rural Non Aggressive | 2.0 - 2.7 |
2. | Severly Polluted | 1.8 - 2.0 |
3. | In Costal Area | 1.5 - 1.6 |