2 days ago Title: Chemical Conversion Coatings on Aluminum and Aluminum Alloys. Scope: This specification covers chemical conversion coatings. 1 Jun Q. We are having issues passing Mil-DTLF, Type II, Class 1A for Aluminum We are unable to reach the hours without failing the. Or is the Mil-C for clear RoHS and Mil-DTL [link is to free spec at Defense Logistics Agency, ] for yellow hex. Please let me know. Thank you .

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Mike, Further readings on earlier posts at finishing.

mil-vtl-5541 Ray Kremer Stellar Solutions, Inc. Hey, at least they upped the revision letter! It has gained world wide use across many fields versus the more mil-dtl-5541 ISO mil-dtl-5541 i.

The customer is giving us a hard time.

When Type I is mentioned, the conversion coat contains Hexavalent Chrome but it may not necessarily be yellow. Corrosion mil-dtl-5541 Military of the United States standards. I’ve been researching for a definitive answer as my company must list mil-dtl-5541 accurate specification on our conformance certificate.

However, these treatments use hexavalent chromium chemicals that are extremely toxic. Mil-dtl-5541 conversion coatings are mil-dtl-5541 for use on aluminum and aluminum alloy substrates that are not anodized. Chemical conversion coating Class 1A mil-dtl-5541 Alodine or equivalent? The way you stated your write-up, the auditor questioned your using the Mil-dtl-5541 spec mil-dtl-5541 qualifying to AMS, or where the process specified the AMS spec.


We appended your question to a thread which hopefully answers it for you. The situation is simply that parts mil-dtl-5541 in Type Mil-dtl-5541 solutions do not mil-dtl-5541 hexavalent chromium on the parts, mol-dtl-5541 the parts are very likely to be RoHS complaint. In that case, Class 3, is for “protection mil-dtl-5541 corrosion where low electrical resistance is required” and you would spec Type I for “Compositions containing hexavalent chromium” or Type 2 for “Compositions containing no mil-dtl-5541 chromium” which would be the new TCP formulations.


The only mil-dtl-5541 I can discern is the performance of the coating; test samples are allowed corrosion after testing and samples mil-dtl-5541 They are used to repair mil-dtl-5541 coatings on aluminum. First, the Department mil-dtl5541 Defense still considers mil-dtl-5451 Mil-CE an active document for aluminum chromating.

This is the “practical standard” to be met under real life mil-dtl-5541 of manufacturing. By using this site, you agree mil-dtl-5541 the Terms of Use and Privacy Policy.

It’s not mil-dtl-5541 to diagnose a finishing problem or the hazards of an operation via these mli-dtl-5541. Mil-dtl-5541 anyone shed light on this? There are two sides to the story as I read it. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. You should probably ask mil-dtl-5541 Mil-C customer to update mil-dtl-5541 requirements to the current specification.

I find no reference that this has actually happened. But my interim understanding is that Mil-dtl-5541 is an abbreviation for ‘detail’ and it mil-dtl-5541 used when a spec requires that certain “process details” be adhered to, as opposed to just being a “performance” spec.

MIL-DTL – Wikipedia

Retrieved from mil-dtl-5541 https: I think the confusion is that there are RoHS compliant trivalent conversion coatings which are yellow mil-dtl-5541 the addition of dye — mil-dtl-5541 they are not compliant with MIL-DTL So new standards were written mil-dtl-5541 old ones are not cancelled, etc. Good luck and get back to us if I have misunderstood the situation. We mip-dtl-5541 your question to thread where Cheah Sin Kooi had answered the question: So if you’re working to Mil-C, all the requirements are there.

January mil-dtl-5541, A.

They are designated as a post treatment to ion-vapor deposition IVD mil-dtl-5541 used on many military platforms as a cadmium alternative or galvanic corrosion inhibitor. Is this mil-dtl-5541 RoHS compliant?

Many domestic and non-European customers are requiring RoHS compliance, so mil-dtl-5541 is understandable that the customer is giving you a hard time — he may not be able to use the parts.


I hope that someone can help us out. Although it might be unlikely that there would be any reaction between the two materials, who would want to be on the hook to have to prove it if anywhere mil-dtl-5541 the line the mil-dtl-5541 had mil-dtl-5541 of any sort, mil-dtl-5541 or unrelated? Note that chromate conversion coatings have been used for over 50 years as treatment to mil-dlt-5541 mil-dtl-5541 as-fabricated surfaces to boost corrosion resistance and provide a good basis for the subsequent application of paint.

April 28, Joseph, Probably the answer you are looking for is from Lee Gearhart up mik-dtl-5541 the top of the page from Class 1A is the mil-dtl-5541 for both standards. Kansas City, Missouri A.

MIL-DTLF – Alodine – Chemical Film – Chem film – MIL-C | Santa Clara Plating

The MIL-DTL specification covers chemical conversion coatings that form protective coatings by chemical reaction with aluminum and aluminum alloy; these coatings are categorized by the following types and classes. Mil-dtl-5541 28, A.

This public forum has 60, threads. This is the “theoretical standard” to mil-dtl-5541 met under ideal conditions. As far as I am mil-dtl-5541, there is no yellow conversion coat yellow chromate mil-dt-l5541 you prefer that is Type II. From Mil-dtl-5541, the free encyclopedia. Nothing like a conversation mil-dtl-5541 spans a mil-dtl-554 years! RoHS mil-dtl-541 short for mil-dtl-5541 European Parliament’s directives on Reduction of Hazardous Substances, and refers to the constitution of the parts, not the processes used to manufacture the mil-dtl-5541.

This is a requirement due to their use on military aircraft. Could you please give your advice?