We have a tuck under cinder block/cement garage that is often moist due to seepage from the brick patio over the garage and water seepage into the underground walls. The walls have been painted, but are bubbling in places and in some places the paint is now gone and the block walls are crumbly. What is the best product to use inside the garage to seal out water, and prevent mold/mildew moisture. Is there a sealer that would help seal and prevent moisture from the brick patio from seeping into the garage? SAMPLE - AFM SafeCoat, WaterShield Concrete & Masonry Sealers

Question

We have a tuck under cinder block/cement garage that is often moist due to seepage from the brick patio over the garage and water seepage into the underground walls. The walls have been painted, but are bubbling in places and in some places the paint is now gone and the block walls are crumbly. What is the best product to use inside the garage to seal out water, and prevent mold/mildew moisture. Is there a sealer that would help seal and prevent moisture from the brick patio from seeping into the garage? SAMPLE - AFM SafeCoat, WaterShield Concrete & Masonry Sealers

Status: Open Aug 01, 2020 - 04:33 AM

1answer

Answer

Aug 02, 2020 - 05:11 AM

All of our penetrating sealers require that the surface be clean, dry and free of paint or sealers. That way they can penetrate deeply into the concrete. Our GBS Penetrating Concrete Sealer is our best sealer for porous concrete. It will block moisture from all sides. It will also help strengthen the concrete and the mortar, stop efflorescence, mold and mildew. If the surface is not porous and you are unable to make it that way, our Dynoseal may be the only other option. It is a topical coating that is a elastomeric waterproofing membrane designed for below grade applications on foundation walls, fence posts, shower pans, roofing, etc. It is black and applies with a roller.