Rated 4.1 out of 5 by 11
Rated 5.0 out of 5.0 by Mike Diamabrush
It's tough to spend $150.0 on an abrasive tool and shroud for just 20 sqft of concrete floor, but I am really happy with the result. The tool removed the black mastic without too much effort, and not much dust.
I used a wet sponge to keep the floor wet and blades cool, and had the shroud connected to my shop vac. Light semi circular motion with minimal pressure on the grinder, and with a few passes I was into clean concrete.
June 7, 2016
Rated 4.0 out of 5.0 by BilltheEngineer Works better than anything else I tried for removing mastic and paint off of concrete
This does what it is says. It removes whatever is on the surface of concrete without really removing to much concrete. It barely removes any concrete and does so in a slow enough manner that you don't have to worry about gouging the concrete. It is it soft concrete like bring it will eat into it quickly. This does work better than a wire wheel, carbide grinding or polishing stones and abrasive wheels. Abrasive wheels work well but cut into the concrete easily as well.
A few helpful pointers:
-You don't need to force to the tool to work, more pressure just wears the blades out faster
-Use a dust shroud on your angle grinder and connect it to a vacuum, otherwise you are in for a dusty clean up. I think you can use it wet but you still will end up with a mess to clean up.
-Wear a respirator not just a dust mask and hearing protection
-A variable speed grinder or a slower speed grinder works just as well and the blades last longer. A typical 11000 rpm angle grinder works but it wears out the blades quicker
-Buy a set or two of extra blades
Mine came with a little wobble to it but it works fine still. When brand new not all the blades contacted the concrete but in a few minutes of use it was. I got about 75 square feet of use out of a set of blades.
If your concrete is really rough than a grinding/polishing of it may be a better option.
February 9, 2016
Rated 5.0 out of 5.0 by pastorgene This tool is a must have!
One pass and mastic is removed, leaving a perfect finish for your flooring. I used it on a small bathroom floor. If you're doing a large area, like an entire room, rent the larger version, along with a floor maintainer, from a Home Depot with a tool rental center. Remember: a LOT of concrete dust is gonna be generated by this process; wear safety glasses & use a breather.
June 23, 2015
Rated 4.0 out of 5.0 by Concreterefinisher Good Removal
The dimabrush wheel did a great job at removal and roughing up the concrete surface. My only problem is that the diamond pads are wearing out much quicker than expected coverage area.
June 2, 2015
Rated 1.0 out of 5.0 by Ronnie Poor purchase
Bought this product and only lasted a few hours. We removed the tile and was using it to take of the adhesive off the concrete floor. Didn't want to rent one, because we weren't sure when we could start and finished. This was planned on being a evening project. Very expensive item to last a few hours.
One of the scrappers broke off.
April 9, 2015
Rated 4.0 out of 5.0 by HomeownerInAsbury Messy but awesome
This drill bit is amazing. It stripped layers of paint and plaster off of the walls in my cinder block basement without damaging the cinderblock at all. (I had first tried a grinder which was destroying the cinder block) So no complaints on how this blade works.
BUT BE WARNED: It took 3 of these blades to complete just a 20' wide 7' tall section of wall... and these blades are very expensive considering the burn out very quickly. But nothing else I found could do what these blades accomplished so I ended up paying.
The other thing to know is that these blades are VERY messy. At one point I had to stop working because there was so much dust in the air I couldn't see my own hand. I would highly recommend using a grinder attached to a vacuum hose, but even then it's going to be very messy.
November 11, 2014
Rated 5.0 out of 5.0 by rowanalso 1 garage floor - 1 day
very happy with this tool - used it to remove coating from my garage floor. It's a single car garage, 26' x 11' All told, took about 6 hours with frequent breaks to vacuum up dust and clean the filter for the shop vac.
Although tedious work, this tool made it much easier to deal with. Please remember to wear face masks and goggles.
January 5, 2015
Rated 2.0 out of 5.0 by HPN1 Not the right tool for my basement floor.
I wish I had known before purchasing this tool how smooth its 25 grit diamond encrusted blades makes concrete. I used it for about ten minutes then realized my bare concrete floor is more than rough enough for an epoxy coating. So it turns out I didn't need this tool in the first place.
I wish I had known that this tool is for roughening up super smooth concrete surfaces as well as taking up epoxy and adhesives.. My old basement floor has fall to it so water runs towards the drains. It also has a course texture like 150 grit sand paper. Some of it has light swirl marks in it. Other places have the lightest broom marks on it. Other parts have like 1/8" steps that are like six inches wide that go from high area near the wall towards the drain area. I don't believe this tool is for woking such concrete textures. The large concrete prep tool plus HD rents would probably work.
Also I read that if a shroud with a vacuum attachment is not used then wet the concrete. I did this and I'd like you to know that the concrete being ground becomes dry almost instantly. I rigged a hose to keep the area being worked wet.. Even with extra water the amount of cement dust in the air was WAY WAY to much for me.
So this tool was not right for my basement but probably works great for smooth concrete. Somebody is going to get great deal on this barely used tool
October 11, 2014