I would, and didn't...and now my paint is flaking off the area that I didn't rough up. The guy at the paint shop said that all I'd need was the 'self-etching primer', and he wasn't completely honest...
Meade
I called PTI today and they recommend lightly scotch brighting the Alcad coating before applying the zinc chromate primer.
Hello All:
I am using the PTI Zinc Chromate primer sold by Aircraft Spruce to coat the entire interior surface of my RV12 including Alcad coated skins and ribs.
Question: Is it necessary to scotch bright the Alcad surfaces before applying the primer?
Thanks,
Bob
Again I have to put in my .02 worth. Alclad is corrosion proof period. It is not necessary to prime for protection. If ya'll are really worried about corrosion; a year after the A/C is finished painted just have the interior skins of the Wing,tail and rear Fusilage treated with a product like corrosion-X . Works really good on Floatplanes operating in salt water and doesn't weigh anything. No I'm not a dealer or supplier of Corrosion-x or any other product, just in case you were wondering.