Dry time before applying epoxy

[M1AHD]

Hi Everyone, I was curious as to how long it took for your concrete to dry after power washing/etching etc. ?

I spent 2 days cleaning/washing/etching/rising my garage floors. It has now been 4 days of drying and I can still see some wet (darker spots) in several areas of my floor.

I know to perform the moisture test (duct tape plastic sheet down) before applying epoxy to check for moisture in the slab. I haven't even bother to do that yet, as I can visually see there is still moisture at this point.

Really just curious as to how long I should be anticipating.. Guess I really soaked my floor good.

Drying method has been leaving the garage door open sun up to sun down. Avg daily high 70f and 35% humidity.

Just today I rented one of those carpet blowers to help move some air across the surface.

 

[LegacyIndustrial]

The fan is a great idea. Air moving over the surface will wick away the moisture.
Pressure washing is effective but it does slow the drying process.


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[tncatadjuster]

It should be dry on the surface by now.If it takes that long for the surface to dry visibly, then look for moisture from below. I can usually coat in a day or two after having water on it. I do recommend a waterborne epoxy primer, it was exposed to moisture from above.