NASA NTRS · 20140002812
GSDO Program Hexavalent Chrome Alternatives: Final Pretreatments Test Report
Abstract
Hexavalent chrome free pretreatments should be considered for use on Ground Support Equipment (OSE) and Electrical Ground Support Equipment (EOSE). Both of the hexavalent chrome free pretreatments (Metalast TCP HF and SurTec 650C) evaluated by this project met, and in some instances exceeded, the requirements ofMIL-DTL-5541 "Chemical Conversion Coatings on Aluminum and Aluminum Alloys". For DC resistance measurements, both Metalast TCP HF and SurTec (!50C met initial requirements following assembly and in many cases continued to maintain passing readings for the duration of testing.
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Kessel, Kurt. 2013-09-01. GSDO Program Hexavalent Chrome Alternatives: Final Pretreatments Test Report. https://ntrs.nasa.gov/citations/20140002812
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