Oscillating tool for conc
#2
11-11-14, 05:02 AM
Group Moderator
#3
11-11-14, 05:57 AM
Group Moderator
I've got this attachment, but it's far too passive for concrete resurfacing, unless it's *very* minor.
[ATTACH=CONFIG]41517[/ATTACH]
Is a diamond cup wheel on a grinder too aggressive?
http://ecx.images-amazon.com/images/...L._SL1500_.jpg
[ATTACH=CONFIG]41517[/ATTACH]
Is a diamond cup wheel on a grinder too aggressive?
http://ecx.images-amazon.com/images/...L._SL1500_.jpg
#4
11-11-14, 06:09 AM
What kind of surface do you hope to achieve, new level or polished surface?
I took an area of a concrete floor down into the aggregate, actually looked nice, but my objective was to lower that area. I used a 6" grinding disk, the ones with a slight cup to keep the attachment above the surface. It floated over the floor nicely and was not too aggressive. I would have preferred the diamond cup X mentioned as faster would have been better but didn't have one at the time.
Bud
I took an area of a concrete floor down into the aggregate, actually looked nice, but my objective was to lower that area. I used a 6" grinding disk, the ones with a slight cup to keep the attachment above the surface. It floated over the floor nicely and was not too aggressive. I would have preferred the diamond cup X mentioned as faster would have been better but didn't have one at the time.
Bud
#5
11-11-14, 06:10 AM
http://www.ebay.com/itm/Fein-MultiMa...item5d519564c4 - we have conc blades, cup wheels, & grinders + chipping guns & bushing tools,,, need to remove a failed coating from conc parapet vert wall in order to wtrproof it,,, thinking fein, bosch, rockwell type tool, dane,,, from what i see, they're a back&forth @ 10k speed - again, THANKS !
#6
11-11-14, 06:53 AM
Group Moderator
That's a pretty small and light tool to do much more than a small area. It probably will do it but it will be slow. Is sand blasting the wall an option? If you have to use a hand tool a large angle grinder would be my next choice.
#7
11-11-14, 08:49 AM
we're removing an asphaltic trowel'd on coating that's delaminated,,, w/o any historical data, its ' shot-in-the-dark ' pricing altho client's got faith in us,,, i'm just thinking out loud, dane,,, + i'm a tool junkie 
if it works, fine,,, it not, i still get another tool & its tax deductible 
if it works, fine,,, it not, i still get another tool & its tax deductible 
#8
11-11-14, 12:30 PM
I have the super cheap Harbor Freight version of that tool. About $20 or so. It works great for a variety of applications, although I never tried removing asphaltic material with it. I'm sure it would work, although slow going due to the size of the tool. You could buy the cheapie to see if it works without being out much money.
#9
11-11-14, 05:13 PM
Have you tried a scraper blade for a recip saw? Milwaukee 3 in. Scraper Reciprocating Saw Blade-49-00-5456 at The Home Depot
I have (as does Brant) a Fein multimaster. Not a tool I would expose to concrete work. The grout tool he mentioned is great for removing tile, but that is far from grinding concrete.
I have (as does Brant) a Fein multimaster. Not a tool I would expose to concrete work. The grout tool he mentioned is great for removing tile, but that is far from grinding concrete.
#10
11-11-14, 05:49 PM
Group Moderator
If it's a surface that's already delaminating... an oscillating tool and a scraper blade might work but it would also be pretty slow. I often use the Fein and a scraper blade to remove old caulking from brick... it's kind of slow but sometimes it works better than chipping by hand with a hammer and chisel.
FWIW, the Fein Multimaster has variable speed control... (via a dial on the side) not sure about other brands. But that comes in handy sometimes.
FWIW, the Fein Multimaster has variable speed control... (via a dial on the side) not sure about other brands. But that comes in handy sometimes.
#11
11-13-14, 04:18 AM
since today'll be colder'n a welldigger's *** in the klondike, gumming up will probably not be an issue,,, we'll use aurand deckcrawlers/4" grinders & see what happens,,, we need 85 - 90% clean substrate in order to install the aquafin coating,,, speed isn't the prime factor but quality of surface prep,,, let you know how it turns out,,, THANKS, GUYS !
