Cleaning aluminum tranny, screwed up...

It's zinc chromate primer. It's usually yellow or green. I use endura aluminum cleaner them endura alodine wash, and zinc chromate primer. Never peels

 

the guy didn't bake them to remove the residue used a can of spray ( product called hogwash was High volume Perc and no longer around ( thanks EPA ) and washed them off then assembled the motor ,they fractured like a hydrogen embrittled bolt , I kind of have the feeling that the rods had a alloy contamination as they were cheap $$ , but when we were in school we were told never to clean titanium with anything chlorine as it can spontanious combust while drying and it also had special handling characterisitics ( oil all threads or you will never get them apart ) . I never played with the stuff other than school and the one shop I worked at , I prefer poor mans metals like aluminum and steel .

 

Certain combinations of electrons...much prefer the way you tell it Stimpy.
Let's see...Ponds, Fleishman...Pitman and Stimpy! Rogue chemists are we!
(now back to my Cold-fusion...er Con-fusion experiments.)

 

I am more of a practical ( testing , risk analyses and assessment* ) hands on guy ,not the chemist guys we had in class who knew chemical bonds and what not to wash some parts with or what to wash parts with to age them and make them stronger , as our professor said your only going to learn enough here to be Dangerous ( to do your Job and recognise what might have caused the Failure ) . not to be Metallurgical chemists .

* the guy who tells you you put the wrong size bolt in the wrong size hole or are using the wrong type of bolt for the job ( not everything uses a grade 8 bolt ) , or the hole wasn't finished properly . or you ruined a spring with weld spatter and thats why it cracked in half , ect , ect ...

 

In the industry, clean it, then Alodine it, then zinc chromate prime it, then paint it