Worst week ever trying to seal my concrete bunker floor

I spent last August working on my basement shelter in Omaha and had a nightmare of a week with moisture. I used this cheap epoxy from a hardware store and it started peeling up after three days. The temp was around 85 degrees and humid the whole time, so that probably messed with the curing. I had to jackhammer out the whole 10x12 floor and start over with a proper moisture barrier. Finally went with a vapor barrier and two coats of a marine-grade sealer that cost me about $150. Has anyone else had trouble getting concrete to seal right in a damp basement?

3 comments

3 Comments

blakestone6d ago

@kim.nina Marine grade just means it won't peel from moisture.

emmam896d ago

Bet your bunker's got better humidity control than my apartment and I'm not even mad about it lol.

kim.nina7d ago

$150 for marine grade sealer is a steal compared to renting a jackhammer in 85 degree humidity. At this point I'm convinced your bunker has a better moisture barrier than most houses in Florida.