[hatzie]

Originally Posted by Gregski

so tried another brand of paint stripper in a spray can on those $20 dollar swap meet valve covers, and just reaffirmed myself to not waste any money on those and just buy the larger containers of the jelly like stuff you brush on, I have now officially spent more on the paint strippers than those covers, LOL

but with about three coats and some elbow grease scrubbing, they did improve, I will work on them some more later on and maybe put them on in a couple months when I mount the alternator lower, you see we have to re route all the wiring so it's hidden Hot Rod style

I prep for powder by scrubbing with Dawn Dish Detergent and hot water, baking the parts for several hours well above the powder cure temp, shell blasting, re-baking, and shell blasting again. Baking will drive the contaminants out of the aluminum along with any trapped gasses in newer castings.

The best paint and powder coat primer for aluminum is anodizing but die cast parts are notoriously difficult if not impossible to anodize because of the way the alloys flow into the molds. I would shy away from anodizing these.