Painting 35 year old bsmt floor.

Old 03-27-15, 02:11 PM
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Painting 35 year old bsmt floor.

I have paint the bsmt in the past.The first coat was oil base back then. Most of it came up a few years later.Usually after 5-8 yeas the latex paint starts to crack and peel.I then try and scrape as much as I can and re paint with latex. So,I'm doing it again.The water heater started to leak a few months a go and of course the paint started to come up . The top layer of the floor has come up in many parts of the concrete floor. A number of parts are sandy (old stuff). What would be the best why to paint.

PS:The bsmt has never flooded or filled with water. It does get damp in the summer and I run dehumidifier.Never had water problem
Old 03-27-15, 02:49 PM
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Have you considered staining it instead of painting?
Old 03-27-15, 02:54 PM
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No paints going to stay stuck to a floor with rising moisture from under the slab.
Once the floors been painted there's no way to stain.
Address the moisture issues from the outside. If there's no sump pump add one.
Old 03-28-15, 04:01 AM
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That's why I don't like to paint basement floors - moisture under paint always = peeling
In order to use a pigmented concrete stain [not an acid stain] you'd need to remove 90% of the paint and even it might peel if moisture comes up thru the slab. The water from the WH leak caused peeling because it got under the paint.

Unless you can mitigate the moisture issue the paint will continue to fail

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