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Author
McKnight, M. E. | Seiler, J. F., Jr.
Title
Quality Control Tests for Adhesion of Paint on the Panels of Tactical Rigid Wall Shelters. Phase 2.
Coporate
National Institute of Standards and Technology, Gaithersburg, MD
Sponsor
U.S. Army Natick Research, Development and Engineering Center, Natick, MA
Report
NISTIR 4958, March 1993, 29 p.
Distribution
Available from National Technical Information Service
Keywords
paints | quality control | adhesion | aluminum | coatings | test methods | adhesion tests | bond strength | building technology | relocatable structures | tactical rigid wall shelters
Abstract
At the request of the U. S. Army Natick Research, Development and Engineering Center, a practical method was developed for measuring the adhesion of paints applied to shelters. As recommended in the Phase 1 report, a pull-off test based on the use of a commercially available pneumatic testing device was chosen. The procedure includes ways of controlling the substrate stiffness, a parameter that affects the test results, and a process for obtaining acceptable levels of adhesion for a particular substrate. The estimated precision (standard deviation) of the method is 9 percent. In a pilot study to determine the extent to which small differences in surface preparation would affect differences in pull-off test results, it was found that, at least for aluminum, the procedure was insensitive to small differences in surface preparation.