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Testing requirement for BRUSH ON chem filming per MIL C 5541

June 5, 2008

I have been digging through the mil spec book trying to find written proof that there is NO testing requirement on the applicator's behalf for a brush on application of Chemfilm.

I was verbally told by a consultant that a BRUSH on procedure meets MIL-DTL-81706 type 1, class 1A, form 3, method B.

The problem is. All the repair work we do must meet the specs of MIL -C- 5541.

I need to find written proof that there is no TESTING required for the brush on of Chemfilming. We are ready to purchase the material but, we must confirm this first.

DTL-81706 discusses the testing, for the chemicals themselves. Since we are purchasing a premixed solution and NOT tanking and NOT changing the chemical compound. Testing doesn't seem to be required. (I was also told this by a consultant). I just need written proof also tieing to MIL-C-5541.

Please help.

Todd H [last name deleted for privacy by Editor]
Technician - Los Angeles, California, USA

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June 6, 2008

Todd

MIL DTL 81706B details the requirements for materials and methods that may be used to produce a chemical conversion coating on aluminum.

MIL C-5541 details the performance requirements of the coating produced using the materials and methods in 81706. Unless otherwise excepted by your customer, testing is required. If you do not test your coatings, how do you know they are any good?

Willie Alexander
- Colorado Springs, Colorado