Noob Question - Epoxy prep - Concrete floor messed up

[lazybones18]

Hi guys

I had a noob question. I want to epoxy my floor but i have big cracks in the concrete. I live in Los Angeles and the house was build in 1950's. The floor is also not even -

Do i need to put new concrete before Epoxy ? or is there any material available which i can use to fix the floor

any suggestions ?

I honestly like Porcelain tiles better - but how would i even go about putting Porcelain tiles on a messed up concrete floor like this ?

 

[LegacyIndustrial]

You may never get it perfect but I would fill them with a gel crack filler and then grind them as flush as you can. Our product can be shipped to L.A. and is low VOC.

Later, you can grind the entire floor in preparation for coatings.

 

[Garage Flooring]

Hi guys

I had a noob question. I want to epoxy my floor but i have big cracks in the concrete. I live in Los Angeles and the house was build in 1950's. The floor is also not even -

Do i need to put new concrete before Epoxy ? or is there any material available which i can use to fix the floor

any suggestions ?

I honestly like Porcelain tiles better - but how would i even go about putting Porcelain tiles on a messed up concrete floor like this ?

Wow that is one heck of a crack. If you really want to do porcelain tiles there are a lot of experts on that subject here. I would start a new thread for that and put 'Porcelain tiles' in the subject line.

My concern with this floor is how much damage is done to the floor and is the crack growing. In other words, if you fix this from a cosmetic standpoint is it going to continue to crack and are there some issues there or have they resolved and this is old damage that once repaired you would be set.

My guess, and I am not a porcelain tile person, is if you went that route you could put an underlayment down to deal with some of the issue.

On the epoxy side of things, your going to have to go with 100% solids epoxy for the base and a VOC compliant top coat which is likely to be another epoxy. You will really want to put some time in there to make sure the stuff is (a) resistant to the chemicals it will be exposed to as well as UV if you keep the door open and (b) how resistant to tire tracks it is. There is a HUGE difference in product when it comes to Southern California installations.

 

[benwah]

For epoxy...

Powerwash and vacuum all the junk out of the cracks. Chip away any loose or failing concrete.

Use 100% solids surfacing epoxy with fumed silica mixed @ 0.5:1 - 0.75:1 by volume to fill the large cracks. I suggest 1/2" - 3/4" lift at a time. Being in Southern CA there is always a chance this will crack again though.

Proceed with standard surface prep after that.

 

[LegacyIndustrial]

We ship tough, voc compliant products to SO-CAL regularly including a robust urethane clear. It's not as difficult as it used to be.



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[hachi-roku_fan]

Wow I thought my crack was big. Curious to see how this turns out! Keep us updated! I'm in LA too so I know what you mean about old houses and uneven floors lol

 

[hachi-roku_fan]

BUMP!

What ever happened to this? Don't be a lazy bones..... Oh....just noticed your log in lol

 

[James-W]

I wonder what he did, or didn't do, to the floor?

 

[bczygan]

New floor.

And probably redo subsurface soil or pad.

 

[Dan in Pasadena]

New floor.

And probably redo subsurface soil or pad.

This is the right suggestion but may not be possible. I'm in SoCal too and my floor has WORSE cracks and worse heave/displacement!

I can't do much about it because my garage was built directly on slab, there is no perimeter footing like most garages have. That was common in the old days here. I'd have to be able to lift and support the entire garage to put a new slab under it.

 

[Armorpoxy]

We would recommend cleaning them out with a hand grinder and then filling with either our Crack Repair Epoxy Putty or Epoxy Mortar. Grind smooth, then recoat with our Armorclad Epoxy which is colored and will make it all even.

Less work/more money is to use some concrete patch and just cover the floor with www.supratile.com so if it cracks more you won't see it then.