Sealing basement floors and walls

Old 09-18-02, 11:17 AM
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Sealing basement floors and walls

I will be starting on my basement this fall/winter and I would like to seal it before putting up the studs. My neighbor tells me that he used Thompson's Water Seal on his floor. I have my doubts about that, what would you suggest?
Old 09-22-02, 09:50 AM
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Masonry sealers

Masonry dealers can be excellent source of info as well a the proper products to use. A clear penetrating concrete sealer can be used on the floor. Walls can be coated with a waterproofing cement product. Always read and follow manufacturer's instructions for surface prep and application. Gaps between floors and walls should be sealed with hydraulic cement.
Old 09-23-02, 04:36 AM
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I would be careful about putting any kind of sealer of your floor if you will be putting down any kind of adhesive attached floor materials. Most of the major flooring manufacturers won't warrant their adhesives if a sealer or other coating has been used on the floor. Check with the manufacturer.

Old 09-23-02, 09:19 AM
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he probably did but...

that doesn't mean it was a good idea.

Sealers, even concrete sealers, don't last more than a few years.
If you need a sealer, you have problems that need a long term solution. If you don't have moisture problems, you don't need a sealer. Thats a waste of time and $$.

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