I picked up some Rustoleum brand gloss black and "2x" primer something-or-another, and Minwax brand spray polyurethane (not water based) for a build at home depot. I'm not ready to spray yet, but I'll post pics when I'm done.
Yes, with a primer suitable for PVC and the color coat being used. You will want to knock off the shine first with fine sand paper or a Scotchbrite pad to ensure good adhesion. As always, follow the manufacturer's instructions.
I would personally use XIM's 400 primer or Plastic/Vinyl primer. Both are available in spray and brush/roll application. Call your local Sherwin Williams and ask them if they carry the 400 primer. XIM 400 adhesion primer tests very well in adhesion to glossy surfaces. I realize Krylon makes a "Fusion" designed for plastic/PVC, but I wouldn't choose it unless I couldn't find the XIM products locally. You could also call an automotive paint store and get BullDog adhesion primer. I sell all of the above mentioned products and would recommend the two specific adhesion primers before the "paint to plastic" aerosols hands down!
You can buy adhesion promoter in a wipe form then use any type of primer you want. I'd recommend SEM paint and primer. It's a bit more expensive but you get what you pay for. If it's good enough for a Bently, it's good enough for some speaker stands.
It depends what type of finish I'm after. If I'm painting with a textured or hammered paint unless there's an obvious flaw in the primer coat I'll not sand the enclosure. On the other hand if I want a flat, satin, or gloss finish I'll repeat steps of prime / wet sand until I can no longer find low spots while sanding the primer coat.
why not coat the whole thing with high build primer, sand it smooth, then hit it with a color coat or three, then hit it with a finish coat or three?
paint alone just brings out imperfections in the finish, it does not hide them. that is what primer is for.
shoot some pics. people like pics. ;-)
edit: crap, i see that you are spraying pvc. that is a little different. there was a guy who does that for a living who posted a while back. i'll see if i can dig it up...
from a post some time ago...
re painting pvc, i've wondered about that too.
there is a discussion where one guy posted:
"We've been building robots of PVC for many years. The only paint we've found satisfactory for long term use is Krylon Interior/Exterior Spray Paint. This paint works BETTER than their new Fusion Plastic paint and better than Rustoleum's new Plastic paint as well. While Rustoleum general purpose paint is a close second, it remains slightly tacky to the touch for some time. Our only problem is that Krylon discontinued our preferred color -"
some of the other folks on the site have some interesting options as well
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