Epoxy Pros: is this garage slab epoxy-able?

[Jaguar Fan]

Here are pictures of a neighbor's garage slab. It is about 12 years old. My neighbor has owned the townhouse since it was new. The damage to the garage floor is from snow melt & salt & whatnot -- this is ski country where we get many hundreds of inches of snow each year, and there is inevitable salt on the roads & cars.

Is this epoxyable after a good grinding? Its a 550 sf garage, and the concrete is in good shape except where the two cars parked, which now looks like this

and

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[LXCam]

Yes but that's beyond grinding. That needs to be scabbled to get rid of all the spalled concrete. It won't be cheap but is very doable.

 

[LegacyIndustrial]

LXCAM is correct. Scabbler and then a grind, then I would probably look to a full-flake system.

 

[Jaguar Fan]

After using a Scabbler, should we then put a skim coat down such as Ardex, etc? If so, should we then wait 30 days for it to cure, or can we epoxy over the skim coat sooner than 30 days?

 

[LegacyIndustrial]

After using a Scabbler, should we then put a skim coat down such as Ardex, etc? If so, should we then wait 30 days for it to cure, or can we epoxy over the skim coat sooner than 30 days?

You can but consult Ardex on the application.
I don't think you need 30 days when the overlayment is 1/4" or so.
Probably a week is good, but you can do a moisture test to be sure.
Again, talk to Ardex.

 

[tncatadjuster]

I would use epoxy patch for that and know it’s ready the next day. Cement based products are great but I hate rushing cure times. I bet some of the suppliers here have a patch material made with epoxy and graded send.

 

[Armorpoxy]

We get a lot of calls about floors like this. Take a look at our bulletin below. Gives various options and suggestions.

https://254gg219z24i1qbcah3y1wxe-wp...t/uploads/2017/11/CORRODED-FLOOR-BULLETIN.pdf

 

[LXCam]

I wouldn't suggest any cementious based grout. Reason being there's too high a chance of a bond failure. I'd either go with the flooring manufacturers suggested filler or polymer concrete (but confirm compatibility first) for leveling it out.

I would use epoxy patch for that and know it’s ready the next day. Cement based products are great but I hate rushing cure times. I bet some of the suppliers here have a patch material made with epoxy and graded send.