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Fresh slab, do I need to wait until spring?

Pcoghlan

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Joined
Oct 2, 2012
Messages
75
Hey all. I have been lurking on the site for a week or so now after having just constructed my nice new 28*36 workshop. With the shop up and now ready for power, lighting, floor covering I quickly realized I needed a place to research these items.

Lighting and power seem straight forward enough but the whole floor covering thing has me asking a couple of fundamental questions...
First, I am in WV where temperatures have already dropped to the high 30s and low 40s overnight. I am under the impression that epoxy (I know there are hundreds of products and this statement likely does not apply to ALL of them) has to be applied to a slab when the weather is above 60 and the slab over 55. IF this is the case I am probably now looking at a spring job?? The slab (which has a very smooth/polished finish) was only poured 9 days ago and so from what I have read I need to leave it another 3 weeks before even considering covering it. Add to this the fact that despite the floor being a 4" slab I have two 30" * 30" footers which are 12" deep where I will be placing a 2-post car lift. I can see that the rest of the floor is lighter that those two areas even now. This tells me the concrete underneath those footers is going to need a little longer to dry out. This puts me into November by which temperatures will be even lower... Again, does all of this mean I am better waiting till the spring and look for a nice days in the 70s etc or have I been misinformed about the need to apply when slab is 'warm'?


My other question. I saw a post in this forum where someone implied that as he wanted to have a workshop and not a 'showroom', epoxy wouldn't work for him. I too want a workshop. I will be pulling engines, rolling engine cranes across the floor, placing transmissions on the floor...and so on. Is epoxy the best answer in this environment? My main requirement is to put something down that will take this abuse and not stain from oil, brake fluid etc...WITHOUT spending $5k!

Any input much appreciated.

Paul
 
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Angelfire

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Mar 22, 2012
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New Mexico and Ireland
I'll let the more experienced/pro's answer the temp question but my thoughts are to let it cure out a good while before epoxy. Let it get it's cracking done or you run the risk of putting a nice finish on it only to see those cracks come through later. Hopefully you have control joints in all the right places and it becomes a moot point however.
 

slickgt1

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Oct 11, 2010
Messages
1,674
You are correct on pretty much everything. You cannot do epoxy below 70-ish. You also should epoxy during the cooling part of the day. So afternoon. No way can you do this in your climate right now.

Have you considered tile? Give that a search.
 

ADKGarage

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Jul 10, 2012
Messages
51
epoxy coat says it can be laid down to 40 degrees. Check the manufacturer for their input.
 
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Pcoghlan

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Joined
Oct 2, 2012
Messages
75
epoxy coat says it can be laid down to 40 degrees. Check the manufacturer for their input.

Hmmm...just went to their site and do see that, thanks. 40 seems pretty low to be applying epoxy. I may call them to inquire.

Paul
 

Edger

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May 18, 2011
Messages
623
Location
Melbourne Australia
I would suggest that you harden the floor first. check with a manufacturer for their recommendations. The reason is that where you move heavy objects over the floor you will need a very hard surface under the epoxy to stop crushing the concrete. The epoxy will stand up to it quite well if the floor under the epoxy does.
The other reason is to preserve the surface as much as possible until you coat it. It will be easier to clean and less absorbent to contaminants.
 
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Pcoghlan

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Oct 2, 2012
Messages
75
Thanks, when you say I should 'harden' the surface I assume you mean simply stand back (an extra month or so) and wait for it to harden versus proactively doing something to harden it?

I dont mind waiting till spring but the concrete is spotless right now and i highly doubt it will be spotless in 4-5 months knowing how I work:D

Haven't seen ay comments about the suitability of epoxy to the type of work I intend to do so assume that is a non issue.

Paul
 
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