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Bad News ...

Posted by Jay J -Moderator on July 16th, 2001 09:07 PM
In reply to painting basement floors by tess on July 16th, 2001 11:26 AM [Go to top of thread]

Hi tess,

Most likely, you have more moisture 'pushing up' on your paint from the water that's permeating UP from/through the concrete floor. Dehumidification will only rid the basement of the moisture AFTER it's entered the room; not before (as you're hoping.)

Either that, or the floor wasn't primed/eteched before it was painted, or worst, you didn't use the 'right' paint. (Sorry, I can't tell from here ...)

If you want to test the floor for moisture, then do this test where the paint is coming up: Cut a piece of plastic 2' x 2' and duct-tape it COMPLETELY (on all 4 sides) to the floor. Wait 2-3 days and peel it back. If you see 'condensation' on the underside of the plastic, you simply have a vapor 'problem'. If you see something more like droplets, or a puddle, then you have MORE than a water vapor problem. If it's the latter, no sealer/paint will prevent the moisture (not vapor) from coming up. If it's the former, take your chances with a GOOD, QUALITY Sealer. BUT, before you do anything, read the instructions on the Sealer Can first to be SURE you're able to prep the floor properly. (Do this BEFORE you leave the store.)

My best to ya and hope this helps.

Jay J -Moderator

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