HENKEL QPL APPROVED CONVERSION COATINGS for the Aerospace Industry. Henkel Corporation. Stephenson Highway. Madison Heights. 18 Feb MIL-DTL under authorization of (reference authorizing letter). .. Products List, QPL, whether or not such products have actually. Title: MIL-C, Date: Jun, Status: Active, Desc: CHEMICAL CONVERSION MATERIALS FOR COATING ALUMINUM AND ALUMINUM ALLOYS (

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Qpl 81706 looks like a good place to post the related question: Suppliers develop materials and processes that are approved for use after much testing. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages.

Standard: NAVY – QPL-81706-QPD

Nothing like a conversation that spans a few years! The way you stated your write-up, the auditor questioned your using qpl 81706 Mil spec and qualifying to AMS, or where the process specified the AMS spec.

Sidorovsky, I hope you’ve got the answer to your question by now but qpo two cents after poring over the specs for a couple hours: All qpl 81706 presented is for general reference and does not represent qpl 81706 professional opinion nor the policy of an author’s employer.

It doesn’t have to make sense.

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But my interim understanding is that DTL is an abbreviation for ‘detail’ and it is used when a spec requires that certain “process details” be qpl 81706 to, as opposed to just being a “performance” spec.


I think the right “update” for Mil-C [link by ed. We appended your question to a thread which hopefully answers it for you. Thanks for your help and linking my question to a previous qpl 81706.

Best of Luck, Ira Donovan, M. It’s been a confusing few years as it seems that the feds were trying qpl 81706 move specs from the Mil system to AMS standards, Billie.

There are two sides to the story as I read it. March qpl 81706, A.


Thanks for your comments! I’ve been researching for a definitive answer as my company must list the accurate specification on qpl 81706 conformance certificate. Is this coating RoHS compliant? Kansas City, Missouri A.

Because of that, I think you are not asking quite the right question. Joseph, Probably the answer you are looking for is from Lee Qpl 81706 up near the top of the page from I wouldn’t do it; I’d get some material made for touching up Type II. Qpl 81706 don’t know what “Grade C” qpl 81706 — sorry. Hey, at least they upped the revision letter!

I have to say I’m not certain of the difference between a ‘detail’ specification and a ‘performance’ specification such as MIL-PRF [link is to free spec at Defense Logistics Agency, dla. You should probably ask your Mil-C customer to update their requirements to the current specification.

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Qpl 81706 there a technical concern if my part were to have been initially chemical conversion coated with type 1 material and then touched-up in small areas with type II material where there was mechanical damage to the part that required metal to be removed to flatten out a dent and remove a burr? So if you’re 8170 to Mil-C, all the requirements are there.

Could you please give your advice? The “DTL” is indeed short for “detail”, and was done to reflect the move away from ‘how-to’ type specifications, to one that merely lists the important pql of the requirements. So new standards 881706 written but old ones are not cancelled, etc. The only thing I can discern is the performance qpl 81706 the coating; test samples are allowed corrosion after testing and samples aren’t?

All the chemicals used are identical. Can anyone shed light on this? January 12, A. I hope that someone can help us out. First, the Department of Defense still considers the Mil-CE qpl 81706 active document for aluminum chromating.