Letter 16006

Dissimilar Materials [Oregon] 

++

I deal with Alodine 1200s and my question is: Is it safe to Alodine aluminum parts which have dissimilar materials installed in them such as steel helicoils, bushings, dowel pins, etc.?

Thank You,

Mark S Draper
- Central Point, OR

I've never had any problem with chromating parts with pins, helicoils, ect.. although.. they have always been stainless inserts.

Marc Green anodizer - Boise, ID, USA

We have alodined parts with hardware installed. Have found that we must use stainless steel hardware because the acid cleaner and chromate solutions will attack and discolor zinc or cad plated hardware. Also must give the parts a good final rinse and blow dry the areas around the hardware to prevent any bleedout of entrapped solution.

Lee Blanton
- Denton, TX, USA

To my knowledge, racking of dissimilar alloys when anodizing is not advisable. I have not heard of the same for alodining.

Dado Macapagal
- Toronto, Ont

I want to post a question or inquiry of my own.

 

I want to answer or follow-up on this question publicly (in non-commercial fashion).

 

I am a supporting advertiser and want to reach the inquirer privately.