Repairing chips in concrete

[SiGmA_X]

Evening all!

I have a question I'm sure the flooring experts here can aid me with. My folks have a house with chocolate brown concrete floors which previously had wall to wall carpet, resulting in tack strips and then divots. The end goal is to polish and seal the floor. What is the suggested method to repair the holes? They range from 1/16 to 3/16 deep roughly.

Thanks,
Roman

 

[LegacyIndustrial]

Typically filled with an epoxy resin prior to polishing.

 

[SiGmA_X]

Typically filled with an epoxy resin prior to polishing

Do you have a brand recommendation? Thank you!

 

[LegacyIndustrial]

Rhymes with Legacy Industrial.

 

[SiGmA_X]

Rhymes with Legacy Industrial.

Haha, of course!

 

[pauls_workshop]

Sigma, you can use 100% solids Rustoleum Patch Kit on those. Mix about 4:1 with white silica sand to the epoxy and make a sandy epoxy paste or morter. Overfill a little, then come back later with a 4.5" diamond wheel hand grinder to smooth over perfectly. You will be left with a gray color to it. Fine if you epoxy or tile over it later, but not great if you are not doing anything else to the floor than fill in, unless you don't really care about the color. Works great to permanently repair the holes though. I had to do many of these in my basement workshop project where there was carpet originally. Best to NOT pull out these carpet tacks for others. Very hard to fix these holes later. Better to cut them off instead with a grinder wheel or multi-tool with diamond coated bit on the end and not pull out anything. - Paul

 

[kendogg]

Roman, pour another couple inches of concrete over it. NBD, right??

But ya, I'm sure nearly any kind of filler would be sufficient. Depending on how old or dirty the chips are, what is the thought on making the chips bigger, or 'newer' so ther is newer, fresher jagged concrete for the epoxy to bite to?

 

[SiGmA_X]

My dad contacted Legacy Industrial and got some more info from them directly. If that was the guy behind the moniker on here, thank you sir.

Roman, pour another couple inches of concrete over it. NBD, right??

But ya, I'm sure nearly any kind of filler would be sufficient. Depending on how old or dirty the chips are, what is the thought on making the chips bigger, or 'newer' so ther is newer, fresher jagged concrete for the epoxy to bite to?

Not so sure the baseboards or doorways will like that Remember that 16' gliding door I spent a week installing last summer? Yeah. Its at the precise slab depth. The chips are about 10yrs old if memory serves, and they're all pretty rough but some are not very deep. We could chip them further if need be.

Sigma, you can use 100% solids Rustoleum Patch Kit on those. Mix about 4:1 with white silica sand to the epoxy and make a sandy epoxy paste or morter. Overfill a little, then come back later with a 4.5" diamond wheel hand grinder to smooth over perfectly. You will be left with a gray color to it. Fine if you epoxy or tile over it later, but not great if you are not doing anything else to the floor than fill in, unless you don't really care about the color. Works great to permanently repair the holes though. I had to do many of these in my basement workshop project where there was carpet originally. Best to NOT pull out these carpet tacks for others. Very hard to fix these holes later. Better to cut them off instead with a grinder wheel or multi-tool with diamond coated bit on the end and not pull out anything. - Paul

We absolutely care about the finish smoothness, but not the color. Its a raw slab that will be acid washed and acrylic sealed. Its at a beach cabin and frankly looks pretty cool as it sits. I think the grey or slightly different color will add cool character. Its a 55yo brown slab as you can see in the pictures, and its at the beach and on a rock. Moisture (and crappy moisture barrier) has discolored it in some places, as well as original walls that have been removed etc.

 

[bigbadktm]

Ardex feather patch works great for filling spalls and cracks. Epoxy when used alone will turn white, but you can mix in your dust from grinding to create a paste and bring the color closer to the floor.

 

[SiGmA_X]

Ardex feather patch works great for filling spalls and cracks. Epoxy when used alone will turn white, but you can mix in your dust from grinding to create a paste and bring the color closer to the floor.

Interesting.. The guys at Legacy didn't say they would turn white. They offer various colors of chip repair epoxy actually.