So... Does anybody make a router bit for concrete?

[Daytona R/T SE]

I've got some cracks in my garage floor that I want to fill with that two part epoxy made for filling cracks in concrete. There are some areas that I'd like to open up the cracks a bit to really get the epoxy down in there. Does anybody make a router bit for concrete?

[PocketThunder]

It looks like there are some for decorative work but for cutting the slab cracks down for epoxy fill i think you might have to buy a diamond blade and put it in your angle grinder and go at it that way.    How wide is the crack in question?

[Daytona R/T SE]

I don't think the angle grinder thing will work.

Cracks are too squiggly to follow with a disk.

Widest point in cracks might be 1/4"

probably less.

Would like to clean them out to insure good penetration and depth of repair.

I don't want to just squirt some epoxy over the top and grind off the excess.

[71green go]

Air chisel works awesome....just use the pointed chisel

[Budnicks]

Maybe just use a concrete wet saw or put a concrete blade on your skill saw use a vacuum will cutting if you don't use a wet saw, do some downward cuts along the cracks & fill with a "Pour Stone synthetic concrete",  (It makes a mess but looks great when finally done) , or maybe Portland Cement mix with some latex concrete adhesive, spread it in the cracks/cuts & in the mixture, that stuff will expand & contract at around the same rate as the concrete slab itself, especially if it just surface areas your dealing with... That's what we use to do when we covered shop floors at dealerships with epoxy floors or paints, works well did many high traffic areas at multiple automotive dealerships all over the west coast probably 10 or so years ago now... Most of the stuff can be purchased at Lowes or Home Depot... Never heard of a router for concrete, but there are stranger things I've never heard of... Good luck with your projects..

[tan top]

Air chisel works awesome....just use the pointed chisel

yeah just what i was going to suggest

[Tilar]

Air chisel works awesome....just use the pointed chisel

yeah just what i was going to suggest

Just be sure to wear eye protection or your going to be picking pieces of concrete out of your eyes.

[ralley72]

I've got some cracks in my garage floor that I want to fill with that two part epoxy made for filling cracks in concrete. There are some areas that I'd like to open up the cracks a bit to really get the epoxy down in there. Does anybody make a router bit for concrete?

Sorta of, its called a crack chaser. Its a v shaped diamond blade to use with a 4 1/2" grinder. We use them alot to clean cracks in concrete walls, floors, slabs. It allows the user to follow the crack and gives a clean edge for caulking or epoxy filler. Its also help remove loose material down in the crack about 1/2" down. User will need eye protection and ear plugs. And no home depot or Lowe's don't have them, I buy mine from concrete supply companies. I carry one in my truck all the time. If you need a picture I can try to post one for you. They are not cheap to purchase. I would not use a concrete blade in a skill saw, very dangerous, they will kick back alot and can't follow the crack

Mike

[69rtse4spd]

I was thinking of something else when I read the first line,  , but good to know about it.

[dkn1997]

.....its called a crack chaser. .....

what did you call me? 

[Daytona R/T SE]

Here's the goo I intend to squirt in the crack:

http://dependabledepot.com/diyultrafastconcretefloorrepairkit-1.aspx

[dkn1997]

Here's the goo I intend to squirt in the crack.......

I thought this was a family friendly site

[Daytona R/T SE]

Here's the goo I intend to squirt in the crack.......

I thought this was a family friendly site

[Budnicks]

Looks like a decent product, synthetic 2 part epoxy's are pretty great stuff, it says you can add silica & is grind-able to smooth out before completely set...

[b5blue]

A concrete drill bit is what I recommend followed by vacuuming, brushing well while doing. It would be best to flush with lots of water to get the cracks clean and let that dry well before filling. Keep in mind expansion and settling created the cracks, a product like "Vulcume" (SP?) is what we used for a lasting yet flexible seal in construction where warranty was an issue.   

[xpbprox]

Concrete blade in your skill saw, cut on both sides is the crack. Then every 3-5 feet cut a channel across. Break it all out then where you cut the channel, use a masonry bit to drill holes so you can put rebar in them to join the slabs together. I put epoxy in the holes then stuck the rebar in them.

Oh and using a concrete blade in a skill saw will he fine, I would use some water. Either from a spray bottle or something, just be careful.