Painting & Smoothing basement foundation wall

Old 03-02-13, 11:12 AM
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Question Painting & Smoothing basement foundation wall

I'm painting the stariway down to the basement and at the base the stairs make a turn to the left. At that turn a section of the concrete foundation is exposed, and visable, about a 4' X 4' section. As with all concrete foundations it is pock marked and rough. My first question is what can I use to smooth out this wall, plaster, dry wall mud, something else? Second do I need to use a special paint over the concrete or can I just continue with the latex white wall paint I'm using on the stariway walls.
House is only 8 years old and I've never had any water problems, or seepage through the foundation.
Old 03-02-13, 01:01 PM
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If the concrete hasn't been painted you can use mortar or thinset to fill the voids. A drywall setting compound [like durabond] will also work. I'd shy away from regular joint compound as it is water soluble. While the concrete might not get wet enough to completely dissolve it, moisture in the concrete can degrade it enough where you could have problems.

If the foundation is porous, you should use block fill or drylok for the primer, otherwise most any latex primer will be fine. You could even use finish paint if you thin it a little. Your wall paint should be fine for the finish.

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