How to sand/prep/paint ABS plastic., Need help Options

[ILoveMySilly97]

Some of you may know that I was going to get a paint job but due to me purchasing a new set of Enkei RPF1. The new paint job is put on hold til summer maybe. I decided to just repaint the GT4 rear splitters that I have myself. Since it doesn't look too hard to attempt. I never done any kind of sanding or painting or yea. Just a FYI I sucked at art. LOL! But to get to the point. I need help to repaint them. As of right now they are RED and want to repaint them with Silver 119. They are OEM and not replicas.

My questions:

What grade sand paper? Wet or dry sand?
What's the best primer for ABS plastic?
Need help on this DIY repaint.

Specs:

GT4 Rear Splitters
OEM ABS plastic material
Currently still have the original paint on it I believe
Slightly scraped but no holes. See pics.

Pics:



This post has been edited by ILoveMySilly97: Jan 2, 2013 - 1:18 AM

[opie_7afe]

if the red is factory paint, you will get a better bond to wetsand with 400/500/800 then use your primer and paint as the factory paint has the best bond you can get in most cases so its best to work on top of the factory paint for plastic parts. i just painted my front end with the dupli-color paintshop while it was cheap and worked ok, it can be pretty orange peely because it does dry fast due to it being lacquer, but i didnt have any issues with it. the primer i got was a very light gray color but, it did cover VERY well with 2 medium coats.(one of my fenders was a green/blue) metallic and i was painting it white and both fenders match(other one was factory white)..this is just my advice. good luck!