Prepping Plastic

[Liam1805]

Heyya guys im going to have my arches, rear and front bumper colour coded soon, but i want to do all the prep work so i dont have to pay more. Im very good with prepping, spraying etc.

But what is the best way to prep the plastics as i have only ever done metals etc ??

[corsaboi90]

go to halfrauds they do proppa plastic primer. sand down your plastics to smooth. will take time and sore fingers. make sure they are clean and spray away with your primer.

[Liam1805]

Originally Posted by corsaboi90

go to halfrauds they do proppa plastic primer. sand down your plastics to smooth. will take time and sore fingers. make sure they are clean and spray away with your primer.

Im going to be spraying my bumpers with a gun so ill get the right sprays etcc.
So all i need to do is get rid of the tiny little bubbles on the plastics yehh, should i leave it rough to put the primer on then sand that back smooth orr ??

Orbital sander it is then haa

Cheers

[Liam1805]

Guys do you actually need to get rid of them bubbles in the plastic orr not ??
Im a bit confused now as my mates gsi has the bubbles under his paint, if so how do you sand them as it would rub the bubbles down.

Reason im asking is i have just got a facelift bumper in lime green (not sure what its called) and wondering how to remove that for primer and flame red.

[corsaXEV_chris]

i dont think the bumpers and arches have to be totally smooth because the paint layers will smothen out the surface, but as smooth as you can get would probably help, with the bumper i started preping a bonnet i have it was black and i just rubbed the paint down with some wet n dry two times over the whole bonnet, primered rubbed down with some medium/smooth wet n dry primered again and a final rub down with the medium smooth wet n dry, seemed to do the trick

oh and ii started going over the primer with flame red and it came out ok for a back garden rattle can job... lol

[Benn]

If you have a bumper that's already painted, you don't need to primer it unless its damaged. Sad the paint back then you can paint over the top.
As Chris said^ you dont need to sand the plastic down to be smooth. That's what the primer does.

[Liam1805]

Originally Posted by Benn

If you have a bumper that's already painted, you don't need to primer it unless its damaged. Sad the paint back then you can paint over the top.
As Chris said^ you dont need to sand the plastic down to be smooth. That's what the primer does.

Thanks chris and benn. Thats good then so what grit shall i use to sand down the paint. Wet sanding or dry mate.

Thanks.

[corsaXEV_chris]

any mediem grit should do, not too sure on the numbers... lol imo wet sanding is better, just remember to keep dipping the wet n dry paper in the water lol

[Benn]

Are you just painting it? If you are 320 max, if you are gonna primer it then 180 it all.

[Liam1805]

Thanks guys, not sure on weather to just paint or take it back and primer. Most likely will just paint it.

[Fusionboy]

i want to do my bumper tomoz so do it tomoz if u want

[Liam1805]

Originally Posted by Fusionboy

i want to do my bumper tomoz so do it tomoz if u want

What bumper. Yours are already coded boyo