EFFECT OF HEAT ON CHROMATE CONVERSION COATINGS USED AS PAINT PRETREATMENTS.
Abstract
The report covers a study on the effect of the corrosion resistance provided by chromate conversion coatings used as metal pretreatments prior to painting. Chromate treated galvanized, electrolytic zinc plated steel, aluminum and magnesium panels were heated before or after painting at temperatures from 120F to 392F for periods up to one hour and subjected to salt spray testing. It was shown that corrosion resistance of painted chromate treated galvanized and electrolytic zinc plated steel is reduced whether painted before or after exposure to heat. This did not occur with treatments for aluminum and magnesium. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1968
- Accession Number
- AD0665641
Entities
People
- William H. Deaver