Sealing Around A Pipe Through A Concrete Wall

Acrylic and latex based caulking.

Sealing around a pipe through a concrete wall.

These penetrations are one of the weakest links in the foundation walls when it comes to holding back groundwater and it s very common for them to leak water. The sleeve pipe may be sealed with mortar tar expansion foam or any other suitable means. Two component polyurethane injects via a standard caulk gun. If there is a substantial flow postpone the project until water stops moving through the hole.

Forms a water and gas tight seal around water sewer and gas pipes in basements. 2 load a caulk gun with exterior grade caulking. To make a sleeve a section of pipe two nominal trade sizes larger than the desired pipe is passed through the wall with 2 to 3 extending out either side of the wall. Locate the pipe in the basement wall that needs sealing.

Dust the area around the pipe with an old paintbrush or handheld duster to remove dirt dust and other debris. Wa pf units provide waterstop pipe sealing. Use a dry cloth to blot up water that may have leaked through the hole. Effectively fills gaps stopping entry of water seepage and soil gases including radon.

Edpm puddle flanges provide waterstops when a continuous pipe runs through the wall. Sometimes they re not sealed at all. When pipes are run through the walls of your foundation they are typically sealed up with concrete hydraulic cement or caulk.