- Author
- Pollard, R. R. | Porter, W. C.
- Title
- Surface Treatment of Steel Prior to Painting.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
- BMS 44, April 8, 1940, 19 p.
- Keywords
- steels | paints | tests
- Identifiers
- pretreatment
- Abstract
- A number of surface-treatment process are described for both plain and galvanized steel. Among such treatments subjected to accelerated weathering, salt spray, and condensation corrosion tests, the hot-dip phosphate treatments for both plain and galvanized surfaces showed outstanding merit in improving the protective value of paints. Particularly effective protection was obtained when such treatments were used, under severely corrosive conditions, in combination with a primer of the inhibitative type. A phosphate cold wash for galvanized steel and two phosphate-chromate cold-wash treatments for plain steel also appeared to improve paint protection.