SALT SPRAY CORROSION RESISTANCE
Abstract
Five pigments, potassium zinc chromate; calcium chromate; strontium chromate; barium chromate; and zinc tetroxychromate, were incorporated with two different paint vehicles, an alkyd resin and a coumarone - indene resin vehicle, suitable driers and solvents, and applied to clad 7075-T6 aluminum alloy, AZ31, Condition H magnesium alloy, normalized 4130 steel, and annealed Type 321 stainless steel. The several samples were ex posed to 20% salt spray exposure for 1500 hours to observe weight losses resulting from the corrosion exposure. The weight loss data showed the effectiveness of the five pigments when applied to steel and magnesium alloy ranked in the order they are mentioned above. Those primers formulated with alkyd resin vehicle performed better when applied to alloy steel and magnesium alloy than those formulated with the cumarone - indene resin.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1956
- Accession Number
- AD0407739
Entities
People
- L. A. Mappus
- R. H. Whidden
- W. M. Sutherland
Organizations
- General Dynamics