Sandpaper

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Sandpaper

Post by Roadking41a on January 10th 2008, 7:23 pm

What grit of sandpapers should I buy to use from start to finish?
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Re: Sandpaper

Post by Matt on January 10th 2008, 7:36 pm

400, 600, 800, 1000. You could also go a little higher like 1500-2000 on the last grit for a shinier finish.

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Re: Sandpaper

Post by karlbasher on January 10th 2008, 7:38 pm

when sanding down car use 220-400 wetsand whole car in 400 before you start painting then do 2 coats and wetsand whole car down with 600 grit and then you can keep doing 2coats 800 coats 1000 2 coats 1500 and then buff or like me im just doing my 6 coats after 2nd coat sanding and then sanding it again after 8th coat and buffing you should buy some 220 or 320 a 400,600,800,1000, and if you want 1500 or 2000 also if you are doing any bondo i would get some 80 grit to work it down you will need it
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Re: Sandpaper

Post by Roadking41a on January 10th 2008, 7:44 pm

Has anyone done more than 8 coats of paint?
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Re: Sandpaper

Post by Matt on January 10th 2008, 7:47 pm

Sure. Theres no rule saying that you have to stop at 8 coats. I thought of doing 10 coats but my arm was so sore from wetsanding I said forget it lmao That and my truck was completely covered and looking good. It would just be added protection. If you want to go 10 coats or 15 coats or whatever go for it.

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Re: Sandpaper

Post by Roadking41a on January 12th 2008, 11:25 pm

What is the best way to sand? Back and Forth or in a crosshatch style?
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Re: Sandpaper

Post by Matt on January 13th 2008, 12:50 am

Crosshatch is the way to go in my opinion. Doing it this way makes sure the area is uniform and level. Only going back and forth or left to right will not guarantee that the high spots will be knocked down.

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Re: Sandpaper

Post by Roadking41a on January 13th 2008, 4:43 pm

Thanks Matt... I don't know if I am asking in the right section.So I'll start asking in my project thread.
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Re: Sandpaper

Post by Bocephus on January 14th 2008, 7:42 pm

No I think this thread is pretty useful as most newbies such as myself would want to know these kinds of questions as well.
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Re: Sandpaper

Post by after on January 23rd 2008, 8:21 pm

you have to sand by hand when wetsanding? or is a sander ok, mine is a palm sander with a 'soft' bottom its sort of like a hardended foam?
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Re: Sandpaper

Post by Matt on February 14th 2008, 1:49 am

I sand everything by hand especially when wetsanding unless it's really stubborn bodywork. It gives you the chance to feel the surface for imperfections through the paper's sliding movement. I wouldn't trust using a mechanical sander for wetsanding. If you get that thing on a corner or tight radius, chances are you'll sand that area of paint right off.

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Re: Sandpaper

Post by cyberized on February 14th 2008, 6:45 pm

Above here someone said to Wet Sand before the 1st coat of paint.....is that necessary? I was planning on dry sanding 400 then 600 before my 1st coat.....and then is I was to Wet Sand it would be after the paint starts rolling on.
PLEASE Advise...........................................and

PS - - - - PLEASE remember to VOTE on my color choices over at PROJECT: '84 El Camino

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Re: Sandpaper

Post by pinoyxpryde on February 14th 2008, 7:27 pm

you dont have to wetsand but i usually find a couple stray scratches onces i start getting the first coat on, they will cover up after wetsanding then more coats but im OCD on those things so i like it to cover on the first 2 coats
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Re: Sandpaper

Post by cyberized on February 17th 2008, 3:17 pm

Do you think IF I sanded my whole car with 220 and then started painting instead of going over it before hand with 400 - - - that sanding scratches would be visible - OR would they fill in?

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Re: Sandpaper

Post by Matt on February 26th 2008, 5:03 pm

220 is pretty coarse. I would suggest hitting it with 400 after the 220 because chances are if you don't you will have to deal with the scratches later.

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Re: Sandpaper

Post by megaglow_z on March 10th 2008, 2:29 am

If the paint is in fair shape,can you just start with 400 wet and then start painting?
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Re: Sandpaper

Post by Matt on March 13th 2008, 5:43 pm

Yep, just make sure if you have any clear coat peeling or raising that you knock that down before hand or else your new paint will stick to the clear which will in turn bubble and fall off.

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Re: Sandpaper

Post by megaglow_z on March 13th 2008, 7:23 pm

cool...no clear on this baby Smile
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Re: Sandpaper

Post by Matt on March 28th 2008, 12:58 pm

cool that will save ya' some time. cheers

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Re: Sandpaper

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