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Epoxy over a really old slab

redtail

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Apr 14, 2008
Messages
27
Hi all, i want to epoxy my really old garage slab. Its only about 2" thick with no vapor barrier underneath. Im a bit worried about water vapor coming through the floor - think it would be okay with a solvent based epoxy or should i look into the water based ones?

Thanks!
 
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redtail

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Apr 14, 2008
Messages
27
It has a ton of cracks lol. It should really be replaced, but theres no way i can afford that right now so a little epoxy will make it tolerable for a few years. The garage/slab is about 90 years near as we can tell, which explains the super thin pour & no barrier etc.

Keep in mind i have very modest expectations for this whole project.
 

SUPERCOAT

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Aug 11, 2009
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75
Location
Oklahoma City, OK, USA
SUPERCOAT allows a great deal of moisture to come through, but you must understand that no thin coat system is going to hold your floor together! The decorative flakes can sure help to disguise the cracks, though.
 
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redtail

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Apr 14, 2008
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Hey thanks for the reply, is superceat water based? Does that even make a difference for breathability?

As i said i fully understand this wont fix my floor and im certainly not expecting beautiful results. I'd be satisfied with a single color, and as you said the flakes will hopefully help hide some of the horrors!
 

AlphaGarage

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Apr 16, 2008
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1,298
Location
Every Garage, AnyTown, USA
Plenty of slabs are cracked, spalled, chipped, dirty and in just generally crappy shape, but those are all good reasons TO coat with epoxy!

If the floor is in bad condition it's a great candidate for a resin system as long as it doesn't have major moisture problems also. Run a quick and simple test to see if your floor has problems... Lay down 2' x 2' pieces of seamless plastic on a few spots around the floor and tape down the edges with duct tape. After a few days remove the tape and check for moisture or condensation on the floor or the bottom of the plastic. If you see moisture you may have a problem with hydrostatic pressure, so consult with a coating pro, or give us a call. If there's no moisture you're probably good to coat.

Keep in mind that even if you have hydrostatic water pressure a quality coating system can handle it if the pressure isn't too high.

As far as the other issues associated with a old and abused floor most all of those problems can be handled. Here's a floor that looked like it was beyond help, but a little TLC and some quality products was all it really needed.


 
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redtail

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Apr 14, 2008
Messages
27
My floor looks about like the 'baddest' picture on your website Fred! I'll try the plastic trick and see what happens.

I have not considered racedeck due to the cost and i just generally dont like the idea of a plastic garage floor.
 
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