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DIY PAINT: Do I sand basecoat before clear or not and why?

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Old Nov 26, 2006 | 01:47 PM
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Default DIY PAINT: Do I sand basecoat before clear or not and why?

So i just finished rattle can primer, base coat, its been drying for 18 hours now. Will i get better shine if i wetsand the base with something like 2000 and then clear coat...or will that make the paint look like crap after clearcoat is applied?
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Old Nov 26, 2006 | 01:52 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (drumminforev)

I'm pretty sure you have to clear before any wetsanding
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Old Nov 26, 2006 | 01:56 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (.Beaver)

i have read both, plus it doesnt make sense to me to clear over a rough surface so anyone else with real world experience?
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Old Nov 26, 2006 | 01:59 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (drumminforev)

as far as I know you should have sanded the primer smooth, thus leaving a smooth surface after base coat. But I'm definately not an expert when it comes to this.
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Old Nov 26, 2006 | 02:05 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (.Beaver)

The primer did get sanded fully smooth with 400 wet sand, but when laying the paint it just doesnt go on smooth. I never have seen it lay on fully smooth as the primer was.

bump
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Old Nov 26, 2006 | 02:30 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (drumminforev)

Depending on the paint manufacter you only have so long to spray clear after spraying base. Find out how long you have/had. If you waited to long the clear will not adhear properly without sanding. As far as the base not going on smoothly thats all in your hands prctice makes perfect. Check to make sure you have proper adjustments needed like air pressure.



EDIT: Is your basecoat rattle can too? If so thats why you have such a sloppy outcome. 2000 is to fine of a grit to sand base, go with 800-1000
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Old Nov 26, 2006 | 02:31 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (drumminforev)

yes... when i paint a car... i let the base dry and wet sand with 2000 or even higher, then lay one more coat of base, then clear.. it helps get rid of imperfections before you clear. BTW- i'm a body man by profession, not just a random shmoe telling you what he heard
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Old Nov 29, 2006 | 05:35 PM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (mike9571)

everyone has so many different opinions

one guy says NEVER sand base
one says sand with 1000
one says sand with 2000


jebus.

This is duplicolor rattle can universal gloss black
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Old Nov 29, 2006 | 05:37 PM
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we never wetsand until after the clear has been baked...but thats just us...
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Old Nov 30, 2006 | 06:59 AM
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Default Re: (old-sk0ol)

ok so no one knows, everyone just goes on whims of their imaginiation?
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Old Nov 30, 2006 | 07:55 AM
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Default Re: (drumminforev)

Well, I dont think there are tons of people out there that have rattle canned a car and then cleared it. How well will clear coat stick to a gloss paint anyway?

You might have to just try it and see.
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Old Nov 30, 2006 | 08:00 AM
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Default Re: (Slopoke)

i was always told not to sand the base before clear UNLESS there were serious runs or something like that. ive painted my car twice now and both times have not sanded between base/clear
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Old Nov 30, 2006 | 08:08 AM
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Procedure.

Sand and clean whatever your about to paint.

Lay primer. Sand smooth.

Lay base coat.

Lay clear and then wet sand and polish.
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Old Dec 5, 2006 | 05:01 PM
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Default Re: (98vsmhatch)

Ok check it out. my base coat has expletive ups in it. not completely smooth and a few runs. so if i sand it then clear it will it be permanently hazy since i wont polish the base?
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Old Dec 5, 2006 | 10:10 PM
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Default Re: (drumminforev)

You Should Only Sand the Base-Coat where the are imperfections I.e to fix runs, dings ect.. After you clear you will not be able to go back and fix these... How was the body before..? Did the whole car NEED primer... If not you may have caused yourself more greif than necessary... and I hope you didin't primer ANYTHING plastic... you will find your paint flaking off readily... Hope this helps...
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Old Dec 6, 2006 | 10:49 AM
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dont know how the weather is there but here its freezing and i learned not to paint anything in the cold weather unles i have ti done at a shopor a heated room. everything turns out better when its hot out.
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Old Dec 6, 2006 | 10:54 AM
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Default Re: (silentdeath12886)

i stoped reading when i saw


rattle can primer
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Old Dec 8, 2006 | 09:14 AM
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Default Re: (williejohnson)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by williejohnson &raquo;</TD></TR><TR><TD CLASS="quote">i stoped reading when i saw


rattle can primer </TD></TR></TABLE>

WTF is that supposed to mean. there is nothing wrong with rattle can primer. and i dont plan on opening a shop up in my apartments parking lot with a tent and clean room just to paint my hood and fender.

and no i used adhesion promoter on the plastic.
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Old Dec 8, 2006 | 09:26 AM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (.Beaver)

alright, so im gonna wetsand the parts that are jacked and lay some base down over those parts only.
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Old Dec 8, 2006 | 09:46 AM
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Default Re: DIY PAINT: Do I sand basecoat before clear or not and why? (drumminforev)

IF you get dust in the paint you will want to sand it out before you clear....but remember....how the surface looks before clear is how its going to look after clear....

what I'm saying is, you can't just sand and leave the sanding scratches there...you have to buff them out completly...THEN clear over it......

IF you get dust in the paint and DONT sand it out, then clear over that, you will have the dust under the clear.....duhh....fisheyes....its not gunna look good.....

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Old Dec 8, 2006 | 09:47 AM
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Default Re: (drumminforev)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drumminforev &raquo;</TD></TR><TR><TD CLASS="quote">

WTF is that supposed to mean. there is nothing wrong with rattle can primer. and i dont plan on opening a shop up in my apartments parking lot with a tent and clean room just to paint my hood and fender.

and no i used adhesion promoter on the plastic.</TD></TR></TABLE>

well 2k primer is deff. better....it hides imperfections and is alot easier to work with when sanding......
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Old Dec 8, 2006 | 10:09 AM
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Default Re: (m R g S r)

whats 2k primer.
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Old Dec 8, 2006 | 10:10 AM
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Default Re: (drumminforev)

should i use a 2000 grit when wetsnading base?
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