Water Blocking Primer/Finish (here's the Product Data Sheet), a product that is basically identical to Drylok Extreme but without the fancy price tag. At the time of the estimate there were definitely damp areas in this basement and we needed a fairly cost effective and quick solution, not to come in with dehumidifiers and heaters and blast the place dry for a couple weeks, etc... so finally I located this product. It inhibits the growth of mold and mildew, it seals bare interior masonry walls from hydrostatic moisture penetration, contains odor eliminating technology to keep out those typical damp musty basement smells.... but best of all it can be applied over a damp (not wet!) surface! I think the after picture pretty much says everything else. Do you have similar efflorescence in your basement/garage? Give us a call and we'll take care of it for you hassle-free.