The study of twice electrodeposition coating. I. Topcoat acrylic resin–primer: epoxy resin with anticorrosion and weather resistance performances
✍ Scribed by Chin-Ping Yang; Chih-Yang Ting
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 180 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
The twice electrodeposition (ED) coating is defined as that by which the primer was coated on the metallic material by ED, then the topcoat was coated on the wet, uncured primer by ED again. It can be observed by the distinction of deposition yield and the change of current density during each process. The main object of this method is to improve anticorrosion and weather resistance of coating film simultaneously. Comparing the physical and chemical properties, it was found that the film obtained by the twice ED coating has superior weather resistance to the one-coat electrodeposited film formed by a coemulsion.