Questions about rattle can painting rims

[Coderedpl]

So for shits and giggle i half assed on my spare today to see how the glossy black would look and i like it so I decided that I'll do it over but nicer (a lot of wet spots and such I guess I was holding it too close?) good for a spare but i want to practice before i do my daily driver rims (VMR 708's)

Now i have some bookmarks on rattle can painting my rims but i have questions.

1. It seems that usually 400-500 grit is the choice to sand before painting. Truth? Or should it be more harsh?

2. How many cans do you really need?
I'll be using krylon flat black for inside(not sure if ill really need this one as rims are already black there and gloss black for the outside

3. When I paint, do i just make say one pass per each side of the spoke, wait till try and keep going like that until they eventually turn black?

4. How would i go about fixing the curb rash? Do i just keep rubbing that 400-500 grit until its mostly smooth or do i take something more harsh?
I tried on a sandpaper looking kind of ending to a small dremel I have and went around the edges and it seemed to work but seems like a long process.
Any ideas? I noticed in one of the bookmarks the person used some sort of spot filler?

Planning to do this tomorrow.

[praudi]

sand them and then buy some primer with patch repair or something like that and it will fix the rash and then paint with the satin or flat black its really easy u cant mess it up ,if you go gloss then couple of coats and you will be good i used about a can for 2 rims in 19 in rims

[schmally]

just got dont doing mine today. just take your time man and make sure at least 3 good coats

[Coderedpl]

damn i gotta read some shit up online, never painted anything really. Guess i'll do trial and error

Not sure on how to do the damn inside of the spokes and such but w.e ill figure it out somehow

[Tusin]

Dude if the 708's aren't your throw away or winter wheels, you may just want to have them powder coated or professionally painted. If you have never sprayed anything, why risk screwing up a good set of wheels. Well you can't REALLY screw them up, but in the end you very well may be taking them in to get painted anyways.

Just a thought.

[Coderedpl]

Dude if the 708's aren't your throw away or winter wheels, you may just want to have them powder coated or professionally painted. If you have never sprayed anything, why risk screwing up a good set of wheels. Well you can't REALLY screw them up, but in the end you very well may be taking them in to get painted anyways.

Just a thought.

Theyre already screwed up from previous owner and car wash assholes spraying some shit on them so might as well do a temporary fix so they look decent/good until and if i decide to get them done