Wash Primer Mil-DTL-5541: Clear No for Compliance

Summary for wash primer mil-dtl-5541 Discussion

wash primer and mil-c-5541 are not the same thing, according to the reply in this thread. Greg Boston asked whether wash primer counts as a chemical conversion coating compliant with MIL-5541. The response says no: wash primer is not compliant with Mil-DTL-5541, and only the specific products on the approved products list may be used for that process. The answerer also notes that the question was very brief, so the interpretation could be limited, but the practical guidance is clear. For anyone trying to meet the specification, the key point is that compliance depends on using approved conversion-coating products, not a generic wash primer.