Sanding curb rash down (rim+bumper) advice

[Prophetic]

So I rubbed a curb turning out of a tiny parking spot, got my bumper pretty good (bout a 4x4" spot) and my rim a little.

Thinking of just sanding it down and grabbing some rattlecan paint to touch it up since I'll be getting a paintjob in the summer anyway.

Will the bumper sand down pretty easily or is this going to be a hell of a job with the plastic bumper? I figure I'll try a bit of a rougher grit and then go down to wet-sanding before I paint.

I'll just be grabbing some gloss black from Crappy Tire to do this with but should I grab a primer too? The plan IS to get a paint job in the summer but obviously unforeseeable things can happen and I'd at least like this to look half ass decent so if its going to flake in like 2 months I'd be kind of annoyed if I could have avoided it with just priming.

On to the rim:

Rim is pretty messed up, my other side one has some pretty rough gouges on the lip of it (friend decided to get acquainted with the curb while trying to parallel park), would it be alright to sand this down with the tire on? I don't really wanna have to unmount the tires and again it'll be a meh job since these are winter rims anyway. Also, anyone know if that rim paint (the duplicolor one I think it is?) is any decent? Will it hold for 4-6 months without flaking if I sand/prime/clear coat it?

Suggestions/experiences is really what I'm looking for as to how to make this look better, I don't plan to bring it in to get professionally done since it's a w/e kind of thing. It's more that it bugs me than anything and I have some free time to do it in so I figured I'd give it a shot!


I'll throw up some before and after shots of my fail attempt at bodywork if it turns out even half assed decent!

[TheyKilledKenny]

Most good shops paint plastic parts with flex paint so it doesnt crack and flake off. If its a small area and you plan on getting it painted eventually I wouldnt worry about it. I doubt any rattle can paint will match yours exactly so dont expect perfection. Start with some 220 grit and work the bumper, then 400, then 800-1000. You can wet sand the courser stuff if you want, you probably wont have to worry with the fine paper. Take a nap clothe to get rid of any debris, then tape off the area for paint. Dont apply too much or you will have lines where you taped off the paint. Nap and sand any imperfections between coats. If you dont apply much, you should be able to polish and buff it to make it look half decent. Remember to let the paint cure for a good while.

Wheels usually have the tires taken off. They would be aluminum welded, and slapped on a lathe before respraying. Id wait until summer when their off your car and sand the piss outta them, then spray em up good. This will give them all summer to cure. Rattle can paint wont ever look as good or hold up as good. But its cheap and if you have the time, who cares.

[blkgtr02]

Start w/ 180 til all the cracks and chips are out then featheredge w/ 320 til it looks uniform and smooth spot primer it w/ etch primer, then sand again w/ 400 + 600. wetsand 800 if its a silver or any light colors.