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ABOUT Autophoretic®
Autophoretic® coating or autodeposition is a patented process which involves the chemical deposition of a PVDC polymer upon raw steel substrates providing a uniform, high quality, black finish. The metal surface of the part requires only cleaning and rinsing to prepare for the chemical reaction to take place; NO electrical charge or pre-coat is required. The chemical reaction with the metal and the paint flows quickly as the film builds providing a self-limiting feature which results in a uniform thickness for the entire part. Because of these factors, the autodeposition system requires less space, less energy, and is environmentally friendly with ZERO VOC’S. This is a revolutionary way to meet higher performance and corrosion resistance standards at a competitive price.
ADVANTAGES |
DISADVANTAGES |
- ZERO VOC’s or heavy metals
- the most environmentally friendly coating today.
- Coats evenly on all surfaces; where it flows it coats with no runs or sags. Uniformly coats the inside and outside of tubular shapes, complex assemblies, and narrow crevices.
- Excellent adhesion. (Coating may be bent back on itself with no cracking or peeling.)
- Pencil hardness of 6H to 7H. (Withstands nicking and marring for better handling.)
- Low cure temperature. (220° F which allows composite parts and assemblies with plastic and rubber components to be coated as full assemblies.)
- Solvent Resistance. (Depends on solvent, time, and temperature.)
- High corrosion resistance (Generally 500 hrs. or better with low carbon, cold-rolledsteel substrates.)
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CHARACTERISTICS OF PARTS SUITABLE FOR AUTOPHORETIC |
- Rust Free
- Scale Free
- Free of excessive weld splatter and/or flux.
- Free from carbon enbrittlement. (A by-product of the heat-treating process)
- No adhesive bonding materials such as tape, epoxy, etc.
- No tool markers, die, bluing or coil markings.
- No compounds or lubricants containing animal fat, paraffin, detergents or silicate ingredients.
- Metal surface must be low to medium carbon, cold or hot rolled steel.
- Parts should be free of any components that cannot withstand temperatures of 250° F.
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In addition parts completing this process should not be exposed to temperatures in excess of 250° F. for extended periods of time to insure that the bond integrity of the coating to the metal is maintained. These criteria have been established to ensure the maximum performance on each part. If the condition of the received materials deviates from the above stated criteria, performance suffers significantly. |
©2009 Express Coat Corporation. All rights reserved.
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