How to properly sand a bumper...?

schoff · March 25th, 2010, 07:26 PM

Alright so i'm wanting to replace my front bumper and side skirt. I have a few different bumpers im looking at, but they are both painted already. Do i just get a really fine sand paper and sand them down really nice (to save money) before taking it to get it repainted?

F8L GT · March 25th, 2010, 07:27 PM

Wet sand them with 1000 or 1200 grit wet/dry paper

mustanginky · March 25th, 2010, 07:28 PM

Not really fine paper. I guess you could scuff the he'll out of it with scotchbrite but it's best to strip it all down. Good question though as I need to know as well.

ajm · March 25th, 2010, 07:30 PM

grey or red scuff pad. Depends on the color of the car. Or a da with interface pad and 600 or 800 staying off the edges then hit the edges with the scuff pad.

You really arent gonna save that much money though if any...I still dont get where people get this stuff that if they prep the part itll save all kinds of money. Prep work is included in paint time. Not only that generally speaking wiping it with wax and grease remover, anti static, and tacking it off is considered prep...which is done right before its painted not by someone at their house before taking it somewhere so youre still gonna foot some money one way or the other.

Not only that if its a shop that does good work and has a good reputation theyre still gonna go back over your work for a few reasons.

1. to make sure its right
2. so if its not right, and they spray it, and theres sand scratches etc you cant blame it on them and throw a fit
3. if 2 happens, their reputation isnt on the line because of someone elses mistake

F8L GT · March 25th, 2010, 07:31 PM

all that needs to be done is scuff up the surface of the clear coat so the new paint can stick

ajm · March 25th, 2010, 07:35 PM

^

, stripping shit down is actually worse than not stripping it given its the oem paint and it is still good.

schoff · March 25th, 2010, 07:43 PM

Originally Posted by ajm

grey or red scuff pad. Depends on the color of the car. Or a da with interface pad and 600 or 800 staying off the edges then hit the edges with the scuff pad.

One of the front bumpers i'm looking at is a black one off an 04 GT and then the other is a "burnt orange" 01 cobra bumper.

schoff · March 25th, 2010, 07:43 PM

Sooo basically i should probably just have the shop do it... no one ever seems to be able to agree on what is best. Ha

ajm · March 25th, 2010, 07:45 PM

Yes have the shop do it. And what you scuff it with depends on the color of your car/color it will be painted not the color of the part. Metallics etc youll want to use a grey bad, white and colors that hide shit well you can get away with a red.

schoff · March 25th, 2010, 07:53 PM

Ooohh gotcha. Thanks! How much do you think it'd cost to get a front bumper painted? I've never dealt with anything on my car getting painted.

ajm · March 25th, 2010, 07:55 PM

It varies per location, shop, etc, especially with customer pay shit.

asiansensation78 · March 25th, 2010, 07:56 PM

I've been quoted between $300 and $600 for a good job, actually in the market to get my front bumper repainted too.

energiesource · March 25th, 2010, 08:13 PM

what would you do if you used too rough of a sand paper, just get the auto body shop to fix it? or what

just-agt · March 25th, 2010, 08:25 PM

Originally Posted by ajm

Yes have the shop do it. And what you scuff it with depends on the color of your car/color it will be painted not the color of the part. Metallics etc youll want to use a grey bad, white and colors that hide shit well you can get away with a red.

40thAnnivGT · March 25th, 2010, 08:49 PM

Originally Posted by ajm

grey or red scuff pad. Depends on the color of the car. Or a da with interface pad and 600 or 800 staying off the edges then hit the edges with the scuff pad.

This.

dcook_14 · March 26th, 2010, 12:06 AM

Originally Posted by energiesource

what would you do if you used too rough of a sand paper, just get the auto body shop to fix it? or what

If there were sand scratches in it they'd probably just throw a primer/sealer on there and go back over it and smooth it all out.

I'd say that unless you're going to spray the bumpers yourself, don't do the prep work yourself. Like AJM said the shop will just re-do what you did anyway. If you want to spray it yourself, then I'd hit it with about 800 grit on a dual action (DA) sander just to cut through and smooth out the clear. Then I'd primer it, wetsand like crazy w/ 1500 then shoot base/clear and wetsand w/ 2000 and buff/polish

dcook_14 · March 26th, 2010, 12:08 AM

Originally Posted by asiansensation78

I've been quoted between $300 and $600 for a good job, actually in the market to get my front bumper repainted too.

My brother in law hooks me up and he quoted me $250 to repaint a hood. Hood and bumper probably take the same amount of work, but the hood probably uses a tad more paint. Not enough to make a big price difference though. I'm going to try my hand at respraying my own hood though. We re-did my Demon a few years back and that turned out pretty nice!

schoff · March 26th, 2010, 01:46 AM

Originally Posted by dcook_14

My brother in law hooks me up and he quoted me $250 to repaint a hood.

Well if he can hook you up and he's good, i'm just down in kc. haha I'm actually at school at Graceland University in Iowa right by the missouri border. You wanna hook me up with a 03/04 cobra bumper while you at it? Ha

schoff · March 26th, 2010, 01:47 AM

Oh btw i got two different hoods. An 04 gt bumper for 100 bucks obo and then an 01 cobra bumper for 150... i'm gonna have to get each repainted, but any suggestions which would look best?

dcook_14 · March 26th, 2010, 02:16 AM

Well the 01 bumper is definitely going to look better. If you hook me up with the 01 bumper I'll hook you up with a paint job on the 04 gt bumper

March 25th, 2010, 07:26 PM	#1
schoff Hardcore Enthusiast 2003 Mustang GT Join Date: Mar 2010 Location: Independence, Missouri Posts: 1,386 iTrader: 0 reviews	How to properly sand a bumper...? Alright so i'm wanting to replace my front bumper and side skirt. I have a few different bumpers im looking at, but they are both painted already. Do i just get a really fine sand paper and sand them down really nice (to save money) before taking it to get it repainted? __________________

March 25th, 2010, 07:27 PM	#2
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	Wet sand them with 1000 or 1200 grit wet/dry paper __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

March 25th, 2010, 07:28 PM	#3
mustanginky MM Fanatic 2000 gt Join Date: Feb 2009 Location: La grange, KY Posts: 4,265 iTrader: 2 reviews	Not really fine paper. I guess you could scuff the he'll out of it with scotchbrite but it's best to strip it all down. Good question though as I need to know as well. __________________ Procharged 2000 5 Speed BAB GT, built motor, blower cams, speedy dyno tune 412 hp, 450 rw tq HARDCORE CREW BRIGHT ATLANTIC BLUE CREW #1 MEMBER

March 25th, 2010, 07:30 PM	#4
ajm Banned Join Date: May 2008 Posts: 7,966 iTrader: 4 reviews	grey or red scuff pad. Depends on the color of the car. Or a da with interface pad and 600 or 800 staying off the edges then hit the edges with the scuff pad. You really arent gonna save that much money though if any...I still dont get where people get this stuff that if they prep the part itll save all kinds of money. Prep work is included in paint time. Not only that generally speaking wiping it with wax and grease remover, anti static, and tacking it off is considered prep...which is done right before its painted not by someone at their house before taking it somewhere so youre still gonna foot some money one way or the other. Not only that if its a shop that does good work and has a good reputation theyre still gonna go back over your work for a few reasons. 1. to make sure its right 2. so if its not right, and they spray it, and theres sand scratches etc you cant blame it on them and throw a fit 3. if 2 happens, their reputation isnt on the line because of someone elses mistake Last edited by ajm; March 25th, 2010 at 07:42 PM.

March 25th, 2010, 07:31 PM	#5
F8L GT !FACEPLATED! 2002 Mustang GT 7.84 @ 86.01 Join Date: Jul 2008 Location: Upper Michigan Posts: 12,917 iTrader: 13 reviews	all that needs to be done is scuff up the surface of the clear coat so the new paint can stick __________________ MM Bracket Racing Crew Co-Founder ~Its a Drag Car, Not a Show Car~ LINK-->Custom Race Transmission Build<--LINK

March 25th, 2010, 07:35 PM	#6
ajm Banned Join Date: May 2008 Posts: 7,966 iTrader: 4 reviews	^ , stripping shit down is actually worse than not stripping it given its the oem paint and it is still good.

March 25th, 2010, 07:43 PM	#8
schoff Hardcore Enthusiast 2003 Mustang GT Join Date: Mar 2010 Location: Independence, Missouri Posts: 1,386 iTrader: 0 reviews	Sooo basically i should probably just have the shop do it... no one ever seems to be able to agree on what is best. Ha __________________

March 25th, 2010, 07:45 PM	#9
ajm Banned Join Date: May 2008 Posts: 7,966 iTrader: 4 reviews	Yes have the shop do it. And what you scuff it with depends on the color of your car/color it will be painted not the color of the part. Metallics etc youll want to use a grey bad, white and colors that hide shit well you can get away with a red.

March 25th, 2010, 07:53 PM	#10
schoff Hardcore Enthusiast 2003 Mustang GT Join Date: Mar 2010 Location: Independence, Missouri Posts: 1,386 iTrader: 0 reviews	Ooohh gotcha. Thanks! How much do you think it'd cost to get a front bumper painted? I've never dealt with anything on my car getting painted. __________________

March 25th, 2010, 07:55 PM	#11
ajm Banned Join Date: May 2008 Posts: 7,966 iTrader: 4 reviews	It varies per location, shop, etc, especially with customer pay shit.

March 25th, 2010, 07:56 PM	#12
asiansensation78 Too Soon, Junior! 03 GT Vert 15:43.28@25.21 Too many naked bitches in the back Join Date: Jul 2009 Location: Columbus, OH Posts: 3,742 iTrader: 4 reviews	I've been quoted between $300 and $600 for a good job, actually in the market to get my front bumper repainted too. __________________ 03 GT - Scrapes on lane markers - Modded 02 Cougar - Able to clear most speed bumps - Some mods 01 Explorer - Parking blocks NOM NOM NOM - Stock Nitrous Switch Panel for sale!

March 25th, 2010, 08:13 PM	#13
energiesource MM Fanatic Join Date: Oct 2006 Location: Up der in canada eh Posts: 3,527 iTrader: 1 reviews	what would you do if you used too rough of a sand paper, just get the auto body shop to fix it? or what __________________ 2000 Mustang GT, 417hp/421tq, P1SC @ 6 psi(?), Custom grind cams, Steeda Triax shifter, SLP LM2, MAC L/T and O/R H-pipe. 18x9/10 Flat Black FR500's, Mach C-pillars, bullitt side scoops/skirts.

March 26th, 2010, 01:47 AM	#19
schoff Hardcore Enthusiast 2003 Mustang GT Join Date: Mar 2010 Location: Independence, Missouri Posts: 1,386 iTrader: 0 reviews	Oh btw i got two different hoods. An 04 gt bumper for 100 bucks obo and then an 01 cobra bumper for 150... i'm gonna have to get each repainted, but any suggestions which would look best? __________________

March 26th, 2010, 02:16 AM	#20
dcook_14 Banned 2004 Mustang GT 12.35@114.08 w/ 1.88 60' Join Date: Feb 2009 Location: Waterloo, IA Posts: 7,015 Blog Entries: 2 iTrader: 7 reviews	Well the 01 bumper is definitely going to look better. If you hook me up with the 01 bumper I'll hook you up with a paint job on the 04 gt bumper __________________ Do the Right Thing, Cook. ~Zip.

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