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Sanding Help!

PostPosted: Mon Mar 08, 2010 2:55 am
by SlowEG8
Well heres a pic of the back of my car. the paint is down to the primer on some of it and i want to make a temporary paint job on it. Im not bright with paints and sanding so can some one help me out with this? thanks.


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Also, i want to do my bumper. As you can see its horrible.

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Heres the back panel. Same situation.

Image

PostPosted: Mon Mar 08, 2010 4:06 am
by teal_dx
So you're wanting to scuff up the surface to give the new paint something to bite to?

I'd wet sand with some 400 or 600 grit :thumb:

Moving to Body & Exterior

PostPosted: Mon Mar 08, 2010 4:11 am
by MG6
wash the area you will be sanding down so you know how far you need to sand.

you don't want to sand all the way down to bare metal.

PostPosted: Mon Mar 08, 2010 6:47 am
by marquisdee1018
teal_dx wrote:So you're wanting to scuff up the surface to give the new paint something to bite to?

I'd wet sand with some 400 or 600 grit :thumb:

Moving to Body & Exterior


I just did this last weekend. I wet sanded with 400 grit.

PostPosted: Mon Mar 08, 2010 5:41 pm
by SlowEG8
Okay so wash it & wet sand it with 400. aight got it. what about my bumper tho? its plastic

PostPosted: Mon Mar 08, 2010 5:47 pm
by forcefedEG
anything that allready has paint on it you can wet or dry sany with 320 or finer for paint on paint... if the bumper is allready painted it dosent matter if its plastic you shouldnt have any adheasion issues... the coarser the paper the more likely scratches will come thru. you could do a sand with 4oo and then go back over it with 6oo and a scuff pad (red/burgandy), any bare spots you have primer before painting, if your doing paint on paint you can do, like i said 320 or finer will work, make sure you primer any bare spots, if you have alot of cut thru you may want to think about a coat of sealer... any body work will will need to be primed before you paint so it dosent soak in..

PostPosted: Mon Mar 08, 2010 8:30 pm
by egsedanguy
forcefedEG wrote:anything that allready has paint on it you can wet or dry sany with 320 or finer for paint on paint... if the bumper is allready painted it dosent matter if its plastic you shouldnt have any adheasion issues... the coarser the paper the more likely scratches will come thru. you could do a sand with 4oo and then go back over it with 6oo and a scuff pad (red/burgandy), any bare spots you have primer before painting, if your doing paint on paint you can do, like i said 320 or finer will work, make sure you primer any bare spots, if you have alot of cut thru you may want to think about a coat of sealer... any body work will will need to be primed before you paint so it dosent soak in..


yup what he said. i personaly would try to remove the clear coat entirel from the trunk. cause if the clear is peeling off you dont wanna sand it and paint over it. it will start to decay underneith and cause your paint to lift..

PostPosted: Tue Mar 09, 2010 6:04 pm
by forcefedEG
egsedanguy wrote:
forcefedEG wrote:anything that allready has paint on it you can wet or dry sany with 320 or finer for paint on paint... if the bumper is allready painted it dosent matter if its plastic you shouldnt have any adheasion issues... the coarser the paper the more likely scratches will come thru. you could do a sand with 4oo and then go back over it with 6oo and a scuff pad (red/burgandy), any bare spots you have primer before painting, if your doing paint on paint you can do, like i said 320 or finer will work, make sure you primer any bare spots, if you have alot of cut thru you may want to think about a coat of sealer... any body work will will need to be primed before you paint so it dosent soak in..


yup what he said. i personaly would try to remove the clear coat entirel from the trunk. cause if the clear is peeling off you dont wanna sand it and paint over it. it will start to decay underneith and cause your paint to lift..



x2 yea def... if any clear is peeling get as much of it off as you can :thumb: and you should be fine

PostPosted: Tue Mar 09, 2010 9:26 pm
by SlowEG8
can someone gimme a step by step process on this? lol sry im just tryna figure out what u guys are saying. im a noob lol

PostPosted: Tue Mar 09, 2010 9:43 pm
by egsedanguy
get a palm sander. buy some 320 and 400 grid sand paper. stick it on the sander and sand it down. not rocket sciance :thumb:

PostPosted: Tue Mar 09, 2010 9:45 pm
by SlowEG8
egsedanguy wrote:get a palm sander. buy some 320 and 400 grid sand paper. stick it on the sander and sand it down. not rocket sciance :thumb:


aight thanks. hmmm what about paints?

PostPosted: Tue Mar 09, 2010 9:50 pm
by egsedanguy
what about paint????

PostPosted: Tue Mar 09, 2010 10:54 pm
by SlowEG8
egsedanguy wrote:what about paint????


I know for a fact i need primer, but by the looks of it im gunna do with spray paint ]=

What are some suggestions?

PostPosted: Tue Mar 09, 2010 11:11 pm
by DuhQbnSiLo
SlowEG8 wrote:
egsedanguy wrote:what about paint????


I know for a fact i need primer, but by the looks of it im gunna do with spray paint ]=

What are some suggestions?


huh? what are you asking?

You want to match the color?

PostPosted: Tue Mar 09, 2010 11:19 pm
by SlowEG8
DuhQbnSiLo wrote:
SlowEG8 wrote:
egsedanguy wrote:what about paint????


I know for a fact i need primer, but by the looks of it im gunna do with spray paint ]=

What are some suggestions?


huh? what are you asking?

You want to match the color?


Like should i get a gun and do it with a paint gun?
or can i do it with a car spray can from autozone or something?