What grit sandpaper to use just prior first paint coat?

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What grit sandpaper to use just prior first paint coat?

Post by street_ride14 on March 28th 2013, 5:40 pm

Hey guys,

I plan to primer and block-sand prior to my first coat of paint, what grit sandpaper should I use just prior to my first paint coat?
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Re: What grit sandpaper to use just prior first paint coat?

Post by Ian67 on March 29th 2013, 1:07 am

I had good results wet sanding with 400 grit. I'd say 400 is the consensus around here.

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Re: What grit sandpaper to use just prior first paint coat?

Post by street_ride14 on March 29th 2013, 9:10 am

Thanks Ian
I went ahead and bought a roll of 320 grit sandpaper to use with block sanding, can I use 320grit just prior to first paint coat or would that be somewhat rough for first coat ?
I'm planning to roll, and planning to wet-sand with 600grit after first 2 coats.
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Re: What grit sandpaper to use just prior first paint coat?

Post by Ian67 on March 29th 2013, 10:15 am

It should be fine, s's long as you start between 300-600 grit and try to avoid jumping more than 200 grit between coats. I think the best time to try to get away with a jump in grit like that would be after the first coats, but don't be shocked if you wetland off 60% or more of your 2 coats with that 600. The following coats will cover more and more and less will be removed each time sanding.

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