How To Injection Concrete Wall Cracks With Polyurethane

The expanding foam completely fills it and prevents future water leaks.

How to injection concrete wall cracks with polyurethane.

The attributes of polyurethane pu resin. Polyurethane injection involves injecting leaking basement cracks with a foam rubber seal this type of repair to leaking basements is most appropriate on solid cast in cast in place concrete walls or slabs such as underground parking garages or cold cellars and ceilings. Once inside the crack it begins to foam and expand. To repair a crack embedded in the walls or foundations of your home two products are very commonly used.

From reviewing the typical applications above it is clear that polyurethane injection is an extremely versatile waterproofing method that can be used to deal with any basement leak in a poured concrete structure under all conditions. Polyurethane crack injection kits are recommended for non structural leaking cracks resulting from concrete shrinkage or minor settlement while epoxy injection kits are designed to treat more severe cracks that compromise the structural integrity of the wall. When used in concrete crack injection applications the polyurethane is injected into a crack. Within minutes the polyurethane undergoes a chemical transformation from a liquid to a solid.

Foundation wall or slab crack repair using polyurethane foam injection. 3 when filling wide cracks wait some time not a lot ensuring that the epoxy is filling the concrete crack. Flexible polyurethane and epoxy during a repair the technician either carries out their work with a flexible polyurethane injection or an epoxy injection into the crack to seal and waterproof the foundation. 4 remove the top seal using a chisel or scraper.

This is because the liquid urethane fills the entire foundation crack. 2 larger cracks require more epoxy injection pressure. Epoxy or flexible polyurethane injection. 1 start with a low pressure injection setting and increase the pressure as needed.