Using a DA between coats to aggressive?

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Using a DA between coats to aggressive?

Post by Hai-tek7 on December 9th 2008, 11:56 am

Hey everyone nooby here,

I'm trying to get my marbles straight before I tackle the paint job. SO, my question is; would using a DA for in between coats to aggressive? Could i wetsand with a DA?

my process I was thinking:
1 - use DA to roughen original paint
2 - 2 coats of paint
3 - DA
4 - 2 more coats
5 - wet sand with DA???
6 - 2 more coats
7 - wet sand by hand
then cut, poilsh.....

Any comments welcomed.

Thanks
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Re: Using a DA between coats to aggressive?

Post by retired plumber on December 9th 2008, 5:59 pm

I really don't think water and an electric sander would work very well. In fact it could be a real shocking experiance for you. Using the sander for the initial sanding is fine. With that said, If it is an air powered DA then all bets would be off. My personal opinion would still be no because...
1...They cut real fast with only a small amount of control.
2...You have a LOT more control with your hand.
3...There would be a heck of a mess to clean up with the stuff thrown by the sander.
4... You really need to be careful on edges and corners and things like that because you can power through them in a second where with your hand you can control it.
I have done this for many years as a hobby and have made almost every mistake known to man about painting so believe me when I say power wet sanding is NOT a good idea.
Mike
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Re: Using a DA between coats to aggressive?

Post by Hai-tek7 on December 9th 2008, 9:51 pm

yeah i was thinking of air powered. Thanks for the info, i figured it would take to much off.
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Re: Using a DA between coats to aggressive?

Post by megaglow_z on December 10th 2008, 12:39 am

Ya, your really only knocking off any nibs.
If you have alot of orange peel, maybe needed to fix that, but if its going like it should, just wet sanding should be what you want Smile
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Re: Using a DA between coats to aggressive?

Post by RoboGeek on June 7th 2009, 5:28 pm

I did it, but not wet. I had 6 coats and the orange peel was just getting worse. I couldn't wet sand it out without spending many hours or days doing it.

Let it harden a week before you attempt it, then stick 800 grit on the sander. You'll end up about like layer 2 for coverage, but it will be smooth.

If you apply very thin coats after that, the orange peel is equally small - you can sand that out pretty easy every 2 coats with 400 grit. The final coats let dry for a week or two then hit it with 1000 grit
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