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Old 01-23-2009, 05:09 AM   #1
Livebytheseven
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Member#: 192006
Join Date: Oct 2008
Location: Chico, CA
Vehicle:
2005 STI
White/Carbon hood/trunk

Default Wet Sanding Tips

Hey guys, I have a terrible oxidized CF hood and trunk. I'm going to try to wet sand and clear coat them but ive never wet sanded anything in my life.
im not even sure how to do it, how much water, what grit, or even how hard i should press....
anyway i'm also going to do a DIY debadge of my front top grille (2005 sti) and I was told i should wet sand the paint to give it a nice smooth finish. anyway, is there a wet sanding "class" forum around here somewhere

Thanks in advance!
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Old 01-23-2009, 10:02 AM   #2
TexSurfer
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Default

You could read 'how-to' info all day, but in the end no amount of book knowledge is going to help you. You need to practice wet sanding before you get anywhere near your paint. So I'd suggest getting a junk hood or something and working it out first before you touch your own. Just google wet sanding or color sanding you you'll find plenty of info.
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Old 01-23-2009, 10:50 AM   #3
blackcompany
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lots and lots of water, newspaper grit, no pressure. search search, practice practice.
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Old 01-23-2009, 11:04 AM   #4
Le Saboteur
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Default

Quote:
Originally Posted by TexSurfer View Post
You could read 'how-to' info all day, but in the end no amount of book knowledge is going to help you. You need to practice wet sanding before you get anywhere near your paint. So I'd suggest getting a junk hood or something and working it out first before you touch your own. Just google wet sanding or color sanding you you'll find plenty of info.
wetsanding is not very hard....its gonna take a lot of time to damage paint by wetsanding with 2500 grit. thats like the equivalent to rubbing newspaper on your car...just keep the hood wet and dont apply any pressure. just lightly back and forth (NO CIRCLES) evenly. follow up by polishing to make sure you got rid of all the oxidation. then wetsand again and get it cleared.
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Old 01-23-2009, 01:00 PM   #5
TexSurfer
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Quote:
Originally Posted by lukasandrew View Post
wetsanding is not very hard....its gonna take a lot of time to damage paint by wetsanding with 2500 grit. thats like the equivalent to rubbing newspaper on your car...just keep the hood wet and dont apply any pressure. just lightly back and forth (NO CIRCLES) evenly. follow up by polishing to make sure you got rid of all the oxidation. then wetsand again and get it cleared.
LOL! Are you kidding me? The physical task may not be "hard", but this isn't something to take lightly. First off 2500 = newspaper is making me laugh! Rub your arm with 2500 and newspaper and see how you feel afterward. Weather it be 2000 or 600 you can do plenty of damage in no time if you don't know what you are doing. Thats why I said practice > than theory.
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Old 01-23-2009, 01:51 PM   #6
CGM6
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ALOT of water, keep adding water, don't use pressure and keep your strokes even and consistent

And what ^ said.

Grit will depend on alot of things, things that are hard to say without seeing the product, knowing the goals, etc. Alot of times some wet sanding and buffing will bring life back into damaged clear coats
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Old 01-23-2009, 05:23 PM   #7
Le Saboteur
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Quote:
Originally Posted by TexSurfer View Post
LOL! Are you kidding me? The physical task may not be "hard", but this isn't something to take lightly. First off 2500 = newspaper is making me laugh! Rub your arm with 2500 and newspaper and see how you feel afterward. Weather it be 2000 or 600 you can do plenty of damage in no time if you don't know what you are doing. Thats why I said practice > than theory.
that would explain it.
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Old 01-23-2009, 06:25 PM   #8
JohnMartin
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Default yup

Oh yeah
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Old 01-24-2009, 01:55 AM   #9
Livebytheseven
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White/Carbon hood/trunk

Default

Ok thanks guys. I've just read that buffing with an orbital polisher would do the trick, then I heard it wouldn't, then i read on here that wet sanding is the best way to go...
no idea. i just gotta get this thing clean, clear, and shiny!
thanks for the help!
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Old 01-26-2009, 09:51 AM   #10
TexSurfer
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Quote:
Originally Posted by Livebytheseven View Post
Ok thanks guys. I've just read that buffing with an orbital polisher would do the trick, then I heard it wouldn't, then i read on here that wet sanding is the best way to go...
no idea. i just gotta get this thing clean, clear, and shiny!
thanks for the help!
Might help if you post picks of what you are working with.
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