The Performance Indicators of Painted Aluminum Coil For License Plate
The painted aluminum coil for license plate is made of aluminum alloy which is color coated with PVDF or PE paint after deesterification, cleaning, and passivation. The polyester molecule has excellent adhesion characteristics, which makes the polyester coated aluminum sheet have a very long service life and can not fade after a long time.
Another major advantage of polyester coated aluminum coil is the accuracy of color. It has rich colors for customers to choose from, which can be divided into matte and high gloss. In addition, polyester coated aluminum coil also has excellent performance in the flatness and smoothness.
The stability and firmness of the chemical structure make the physical properties of PVDF coating different from ordinary coatings. In addition to the excellent wear resistance and impact resistance, it shows excellent long-term fading resistance in the harsh environment. Generally, the price of polyester color-coated aluminum coil is lower than that of PVDF coated aluminum coil.
The quality of pre-treatment (cleaning and chemical coating) determines the quality of the coating and directly affects the flexibility and impact resistance of the coating. It determines the coating adhesion of the paint.
The purpose of primary coating, fine coating, and curing is to coat the painting on the surface of the aluminum coil and to volatilize the organic solvent of the coating by heating, so that the organic coating and the substrate are closely combined. Coating and curing directly affect the appearance quality and physical and chemical properties of color coated aluminum.
The Performance Indicators of Color Coated Aluminum Coil
Item | AAMA 2605 | AAMA 2604 | AAMA 2603 |
Color Retention | 10 yrs: Fade = 5 Delta E | 5 yrs: Fade = 5 Delta E | 1 year: "slight" fade |
Chalk Resistance | 10 yrs: Chalk = 8 | 5 yrs: Chalk = 8 | 1 year: "slight" chalk |
1 year: "slight" chalk | 10 yrs: 50% retention | 5 yrs: 30% retention | No specification |
Erosion Resistance | 10 yrs: 10% loss | 5 yrs: 10% loss | No specification |
Dry Film Thickness | 1.2 mils minimum | 1.2 mils minimum | 0.8 mils minimum |
Salt Spray | 4,000 hours | 3,000 hours | 1,500 hours |
Humidity | 4,000 hours | 3,000 hours | 1,500 hours |
Warranty | 10 Year | 5 Years | 1 Year |
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Tags: color coated aluminum coil