sanding down 182 bumper...

[spanishbhoy]

Hey
Guys... in process if sanding down bumper...

using 40 grit sandpaper got higher grades aswell as some 1200 wet and dry for afters


My question is when do I know I've sanded enough and ready to start priming?


cheers

 

[JCC]

40 grit! Jesus wept!

If it's not damaged you shouldn't have to sand it with anything lower than 800 wet n dry.

 

[spanishbhoy]

Few damaged bits that will need repaired using filler which is next....

Lol so can I assume I'm good
To prime then if I've used to low a grade lol... will I give it a wet 1200 before primering? Surely using a low grade paper won't matter once I've primered and wet Andes that down ??? I need to respray the whole bumper so it's not just one bit I'm doing it's the whole bumper so I need to take all the previous colour off...

 

[JCC]

If you've used a 40 grit on it, you're going to have to do a fair bit of sanding through the grades to get rid of the scratches it leaves before priming, a wet 1200 won't even touch it. You'll most probably need to go 80, 180, 400, then wet flat it with 800 before giving it a fair few coats of primer.

You don't have to take all the old paint off either, as I said all it needs is a good sanding till it's all dull with a wet 800 and you'll be able to paint over it. You'd honestly be better off leaving it to professionals mate, it's never going to look as good as a bodyshop doing it.

 

[spanishbhoy]

If you've used a 40 grit on it, you're going to have to do a fair bit of sanding through the grades to get rid of the scratches it leaves before priming, a wet 1200 won't even touch it. You'll most probably need to go 80, 180, 400, then wet flat it with 800 before giving it a fair few coats of primer.

You don't have to take all the old paint off either, as I said all it needs is a good sanding till it's all dull with a wet 800 and you'll be able to paint over it. You'd honestly be better off leaving it to professionals mate, it's never going to look as good as a bodyshop doing it.

yeah u might be right.... ill primer it and stuff myself though and maybe just fire it in..... cheers for the info

 

[Nicky Thomas]

You don't have to take all the old paint off either, as I said all it needs is a good sanding till it's all dull with a wet 800 and you'll be able to paint over it. You'd honestly be better off leaving it to professionals mate, it's never going to look as good as a bodyshop doing it.

This - I done my front bumper a couple of weeks ago to cover up damage from when i had a bump, only temporary but you can seriously tell it wasn't done professional and I didn't really take care with it. It looks better than what it did though but as I said its only temporary £20 fix until I can take it to the body shop.

 

[AUTOCRASH]

spot on!
as you can tell by my name i run a bodyshop!
trow away your 80 grit and take it to a bodyshop! its prob going to cost more to put right what youve done wrong but atleast you will have a pro job and the colour will match!!!
the moral to this tread is;
if you dont know what your doing,leave it a bloody lone and get someone who has got a clue!!!!

If you've used a 40 grit on it, you're going to have to do a fair bit of sanding through the grades to get rid of the scratches it leaves before priming, a wet 1200 won't even touch it. You'll most probably need to go 80, 180, 400, then wet flat it with 800 before giving it a fair few coats of primer.

You don't have to take all the old paint off either, as I said all it needs is a good sanding till it's all dull with a wet 800 and you'll be able to paint over it. You'd honestly be better off leaving it to professionals mate, it's never going to look as good as a bodyshop doing it.

 

[NicoDaniels]

Few damaged bits that will need repaired using filler which is next....

Lol so can I assume I'm good
To prime then if I've used to low a grade lol... will I give it a wet 1200 before primering? Surely using a low grade paper won't matter once I've primered and wet Andes that down ??? I need to respray the whole bumper so it's not just one bit I'm doing it's the whole bumper so I need to take all the previous colour off...

Your best starting with 180 then working you way up to 500/600 then priming it, arosol primer with show 40 grit marks. Once primed sand the primed area with 800/1000 then give it some paint and laquer.
but must warn you, its going to look poo best sending it to a bodyshop, for a really good job.

 

[AUTOCRASH]

god aint you taken that to a bodyshop yet????:S

 

[Stewner]

40 grit, doh!!!! An easy way, 1500 or 2000 grit whole bumper, 240 grit damaged area, then primer, 400 grit primed area, prime again, finally 1500 or 2000 over primed area, paint - lacquer - job done :clap:

 

[AUTOCRASH]

hes used 40grit!!!! that dnt need aerosol primer! it needs high build now!!! if tis thread goes on much longer hes ging to rub through and then hell need a bumper!!!LOL!!!

40 grit, doh!!!! An easy way, 1500 or 2000 grit whole bumper, 240 grit damaged area, then primer, 400 grit primed area, prime again, finally 1500 or 2000 over primed area, paint - lacquer - job done :clap:

 

[Stewner]

Theres not enough high build primer in glasgow to cover them 40 grit sanding marks :S

hes used 40grit!!!! that dnt need aerosol primer! it needs high build now!!! if tis thread goes on much longer hes ging to rub through and then hell need a bumper!!!LOL!!!

 

[spanishbhoy]

problem sorted... Bought a black and decker mouse sander..,, smooth as now. Disaster averted... thanks to the sprayshack for the advice