Metal finishing Q&As since 1989

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Seeking Iriditing Service on Large Weldment

I am the Buyer at an aluminum company in Baltimore, MD., looking for a company that has the capability to Iridite coat an aluminum weldment. The weldment weighs approximately 2000 lbs. with rough dimensions of 6'H X 6'L X 11'W. Must be Iridited to MIL-C-5541 Class 3. The Iriditing is prep for painting, cosmetic appearance upon completion is not important.

Stacey A [last name deleted for privacy by Editor]
- Baltimore, Maryland
2001

Ed. note: Sorry, this RFQ is old & outdated, so contact info is no longer available. However, if you feel that something technical should be said in reply, please post it; no public commercial suggestions please ( huh? why?)

Alodine and Iridite are commercially available and can be brushed dipped or wiped and this is easily accomplished in house. The difference between the classes is basically time in the solution, or time on the part however you choose to apply the Iridite or Alodine. Obtaining a copy of the mil spec will help you apply with the time required to achieve the class three rating

Brad Sawyers
- Racine, Wisconsin
2001