| Interior surface prep ideas |
| 05-12-2008 20:47:30 |
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Posts: 45
Joined: 02-24-2008
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What are you guys doing for surface prep on a good slab with minor glue trails, drywall, and paint? I've got the 7" blastrac setup but I'm getting kind of sick of the time it takes on anything larger than 1000 s.f. Any ideas gladly appreciated.
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| 05-13-2008 06:53:07 |
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i would only use the blastrac for a floor covered close to 100% with a hard adhesive or coating. it's way too much work, leaves lines, and removes all the good cement.
other than that, use a hand grinder with a zec wheel to get up paint overspray. you can also use that for the glue or just a flat edged scraper. and the drywall mud will come up with the floor machine.
zec wheels are good at removing stuff without damaging the cement.
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| 05-13-2008 14:39:15 |
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Posts: 764
Joined: 05-20-2007
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17" swing machine and wet sand with either 60 or 80 grit sanding screens. Its fast, easy and removes dry wall mud, paint, writing..etc and it also helps open up a hard troweled finish without taking away all the good surface cream like a grinder does.
Screw grinding the whole thing with a 7" grinder that is just crazy.
been doing it this way for 13 years on new concrete.
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| 05-13-2008 15:13:22 |
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i didn't say grind the whole thing with a 7" grinder.
he asked about a "good" slab with "minor" glue, drywall, and paint. no need to sand the whole floor in a situation like that. or make more surface contact than is necessary to clean the problem areas.
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| 05-13-2008 15:59:02 |
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Posts: 764
Joined: 05-20-2007
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I never said you said that....he said that he grinds everything with a 7" grinder
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| 05-13-2008 16:47:04 |
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he didn't say anything about grinding. he said blastrac, which usually means shotblast. i said grinder.
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| 05-13-2008 17:30:03 |
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Posts: 44
Joined: 12-06-2007
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Who's on first?
You guys are quite funny today. Thanks, I needed that laugh!
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| 05-13-2008 19:05:23 |
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Posts: 764
Joined: 05-20-2007
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Ok you know he is talking about a 7" grinder not a shot blaster. No one in their right mind would use a shot blaster prior to staining (although ive seen some pretty dumb things) anyways Im pretty sure there is no 7" shot blaster.
By the way blastrac sells a 7" Metabo grinder painted blue with their name on it. Just like they paint the SASE grinder blue and put the blastrac logo on it.
If you you really want my post to be directed at you I guess I can go back and edit it if you want me to...just let me know :)
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| 05-13-2008 20:24:42 |
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Posts: 823
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i didn't know he was talking about grinding. blastrac made their name with shot blast equipment. that's what i assumed when he said shot blast.
i guess 7" means grinding. blastrac has a bunch of small shotblasters but apparently they are all 8".
the main point i was trying to make was: don't shotblast, grind, or sand the whole floor, just use a hand grinder with a zec wheel where necessary.
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| 05-13-2008 20:28:07 |
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Posts: 45
Joined: 02-24-2008
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Thanks for the tips guys. For the record I did mean a 7" grinder. Sometimes I put the abrasive discs on it. I'm just sick of it, was hoping someone invented a way to hose off a slab in 10 minutes that gets rid of glue and all the other gunk.
I also tried the buffer with pad/screen, but didn't think of using sand. How much sand do you use, and how's the cleanup?
No need to fight each other, we're all on the same team. I save my fighting for the homeowner. :)
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| 05-14-2008 03:19:55 |
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Posts: 1160
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at least your posts weren't deleted :-)
best [the original] been-there-had-that-done-to-me yic-yac
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