Fix Basement Leaks And Wall Cracks With Prime Resins 900XLV Foam

Articles > Fix Basement Leaks With Prime Resins Foam

Published: Tue, Mar 15, 2016

Cracks in basement walls and floors is fairly common in homes older than 10 years. Well designed basements actually develop hundreds of distributed hairline cracks as the concrete walls age and shrink. Sometimes, though, a crack forms that is large enough to allow groundwater to leak into the basement.

Some people fix these basement cracks with epoxy. Epoxy is a strong material, but it is very rigid when cured and cannot flex with the wall. Future movement in the structure will result in another crack in the wall next to the epoxy.

Prime Flex 900 XLV is a thin liquid resin that reacts with moisture and expands to form a closed-cell, watertight foam. When cured, 900 XLV forms a hard but flexible foam that can move with the structure. 900 XLV is usually used to seal actively leaking joints and cracks in concrete structures.

The 900 XLV resin from Prime Resins is ideal for concrete crack repair jobs where there is potential for future movement and settling in the structure. In the photo gallery below, you will see a Prime Resins leak-sealing repair job in a basement that had lots of vertical cracks in all four walls.

*NOTE: if your basement has a large horizontal crack in the wall, you should seek advice from a foundation contractor or structural engineer. A horizontal crack could indicate the wall is about to fail.

Photo Gallery
Fix Leaking and Cracked Basement Wall with Prime Resins 900XLV Foam

Leaking basement crack prior to preparation and repair.

Crack is prepared and holes are drilled for resin injection.

Starting at the bottom of the wall, Prime Resins 900 XLV is injected into the basement crack through the holes.

Resin foam expands outside the wall to seal the crack in the concrete basement wall. Note the foam has sealed a crack in an old expoxy surface patch seal.

After injection, the cured foam and injection ports are cut off the wall to leave a clean, dry surface. The leaking basement wall has been fixed.

If you have cracked basement walls that leak, please contact Martech (now infraStruct) to find a company that can fix your basement with Prime Resins 900 XLV.