What grit to use?

General Discussion. Make yourself at home...read, ask and answer!
Should this post get stickied?

Yes
600
92%
No
22
3%
I don't care, I already know how to sand.
28
4%
 
Total votes : 650




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PostPosted: Mon May 02, 2005 8:37 pm
Yeah i now it's a bit of a risk but i'm kinda on a budget with this one. I will defenitly get one of them orbital sanders if I do this again.

DA: what's that punctuation for? :?



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PostPosted: Mon May 02, 2005 9:50 pm
Dual action, meaning that you can set it to grind with the disc spinning or set it to orbit randomly.

Brian
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"Hitting the pavement at 100 mph really smarts"
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PostPosted: Mon May 23, 2005 11:11 pm
I thought dual action meant only that it's random orbit, referring to the dual movements that prevent it from leaving little circular swirls like an orbital?



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PostPosted: Mon May 23, 2005 11:53 pm
Orbital is orbital. As far as I have always understood "DA" is "dual action". Do some detective work over at some of the air tool sites maybe you can come up with the proper answer?

Brian
Free lance adviser

"Hitting the pavement at 100 mph really smarts"
Evel Knievel

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Posts: 1433
Joined: Mon Mar 29, 2004 2:02 am
Location: Hell
PostPosted: Tue May 24, 2005 12:46 am
I think random orbital is dual action. The dual action refers to the fact that the shaft that drives it spins the pad on it (action 1), and the pad spins freely in an eliptical motion (action 2). Orbital doesn't rotate just spins the pad around in tight circles with no free spinning parts and thus no randomness (leaving circles in the peice). And rotary just spins the pad on the shaft. I'd look it up but I'm 97-98% sure I'm right, and I'm lazy.



No Turning Back
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Joined: Sat Jun 04, 2005 7:59 am
PostPosted: Tue Jun 07, 2005 4:38 pm
Well, I guess I'm coming in a little late on this one. Anyhow, I voted.

PS If you want to paint my car for free, COOL!!! Pink is ok.....just make sure it's the minivan.



Fully Engaged
Posts: 250
Joined: Sat Jun 11, 2005 3:23 am
PostPosted: Sat Jun 11, 2005 3:40 am
DA sander works pretty good for speed process. It can easily removes scrathes from hand sanded. I use this a lot in the shop.
I'm a newbie



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Joined: Fri Jul 01, 2005 3:39 pm
Location: Bradenton FL
PostPosted: Fri Jul 01, 2005 3:43 pm
Very good info. I love the site! I will be asking a lot of Qs later.
Image



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Posts: 11
Joined: Sat Apr 09, 2005 7:56 am
Location: Memphis
PostPosted: Tue Jul 05, 2005 3:52 pm
Apparently I seem to be doing something wrong. I used 400 grit 3M wet/dry paper to sand my surfacer and I can see the sanding scratches plain as day through the base coat. So much so that I think I'm going to have to redo the base. I sanded a piece with 600 grit and I swear to god I can see those too. Is it some wierd 3M paper thing or do I have Super Eyes?



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Posts: 250
Joined: Sat Jun 11, 2005 3:23 am
PostPosted: Thu Jul 07, 2005 3:00 am
use mirka sandpapers. works pretty good. 500-600 grit should do the job before sealer and basecoat.
I'm a newbie
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