rds0523 wrote:A guy i work with used the same etching primer and only used 1 coat and he mentioned he wished he had used a second coat of primer because it doesn't take much to chip the paint and primer off of his right down to the bare aluminum. I then read rustoleum documentation you should put on a light coat followed by a second heavier coat - i guess i just thought it would make sense to have 2 coats of primer. ( apparently that was wrong?)
2 coats would be fine, the way I read it I thought maybe more because you said several coats.
On your guy you work with sounds like his first coat isn't sticking. Aluminum has to be prepped really well because it builds an oxidized surface really quick. Primer is supposed to give your paint something to stick to.
$300 for macco? hm, how many cans you going to have in it? Dam things were 6 something a piece here the other day.