I've used both the latex and oil versions of Dry-lock (dry-loc?). They both
work very well to prevent dampness from wicking through block and concret.
If you have a serious water problem with a fair amount of pressure build up
behind the wall, you'll need to apply Dry-lock to the inside and outside
surfaces of the wall, which is pretty tough, given that the outside of the
wall is likely buried. With a lot of water pressure behind a wall, it will
bubble the Dry-lock off of the surface in areas that are prone to seepage.
The products are very labor intensive to apply. The stuff requires a LOT of
mixing to get the solids to suspend in the liquid, and then the material is
very thick and requires a fair amount of elbow grease to apply. You use a
brush on the first coat, and can roll the second coat if you did a good job
on the first coat. Essentially, your brush coat pushes the goo back into
all of the crevases and pores in the concrete and the second coat fills
My take on it is that as a retrofit, Dry-lock is a great product for helping
fix a damp basement. If you have a wet basement, it'll probably help, but
won't eliminate the problem.
Agreed here. We used Dr-Lock in our basement. We did not ave water problems,
but we did not want any either. It does take a while to apply, that was the
biggest surprise. I liked the product though.
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