AN EVALUATION OF THE EFFECT OF THE THICKNESS OF WASH PRIMER,
Abstract
Adhesion characteristics of the specifications MIL-C-22750A(WEP) epoxy-polyamide and the MIL-C-19537(Aer) acrylic-nitrocellulose systems using thick and thin coatings of MIL-C-8514(Aer) wash primer are compared over various metal surfaces. The adhesion of both finish systems utilizing the heavier .6 plus or minus .1 mils wash primer is significantly better in dry adhesion tests and as good, or better, in wet adhesion tests than the .2 - .3 mils wash primed systems. Corrosion resistance of 2024 bare aluminum alloy panels with no chemical treatment, and coated with the aforementioned systems is better when thick .6 plus or minus .1 mil MIL-C-8514(Aer) wash primer is applied as compared to the thin .2 - .3 mil wash primer. Recommendation is made to use the thicker coat of wash primer and to incorporate the necessary changes in the applicalbe process specifications. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 1966
- Accession Number
- AD0632248
Entities
People
- R. S. Adler