Improving Basement Wall Coverage – Seal and Fill Base with Epoxy or Polyurethane Injection
When an apartment owner thinks the basement waterproofing, immediate concern is the high cost that often comes with it. Typically, a basement wall surface is something that the homeowner can easily notice, but eliminates addressing as it becomes a serious problem. Fortunately, there is a low cost and extremely effective solution for both leakage and structural cracks on cast bases – in low pressure injection. This process has become the most practical concrete cracking solution for underwater waterproofing and base repair work in the United States and Canada. However, for a homeowner who does not know the crack injection, such a simple and effective process may seem too good to be true.
The idea of crack injection is the introduction of a liquid polymer (typically two-part polyurethane or epoxy) into the crack. This procedure allows the material to pass through the cavity of the foundation, effectively filling the cracking after curing. Prior to injection, the cracking is covered with a sealant (best epoxy adhesive) so that the injected material does not leak at the beginning of the cracking.
The crack injection process has given the homeowners a cost-effective solution that can be a long-lasting one if they are not properly handled. For example, in the past few years, the most common solution for leaking cracks is the installation of an internal channel system or a home excavation – both require considerable time and manpower, which is a major expense for the homeowner. Injection of cracks is not only more cost effective but also effective as it actually deals with cracking hollow areas, as opposed to drainage that only collects leaking water while allowing open cracking.
Does one of the most common questions apply to the injection material – which fits better with the basic crack repair? Both the polyurethane and the epoxide work well, but there are special parameters where one substance would be beneficial in the other site.
Shrinkage results in most cracks – usually not when a foundation cracking begins to leak. If the crack is not necessarily structural, I always recommend polyurethane. As a result of contact with water, polyurethane is capable of extending the initial volume to six to thirty times (depending on the manufacturer and the type of polyurethane). The result of the expansion makes the injection process more user friendly to the applicator – as the urethane expands, the foam basically fills the foundation in all empty areas. In the case of epoxy, it usually takes much more material than urethane to improve the same fracture as the epoxide does not have the same degree of dilatation.
Application of epoxy is necessary for structural cracking of the foundation. With the injection of epoxy, improved cracking becomes much stronger than the surrounding area – the added strength of the epoxy becomes vital to such repairs. Depending on the severity of the structural problem, additional reinforcing products may be required to ensure that further movement or deposition does not cause further cracks around the crack.
Before the primer is forced to crack crack repair, the employee must consult the certified carrier to ensure knowledge of the proper curing time of the materials and the correct use of all parts. For example, when buying a two-component epoxy or polyurethane, its viscosity determines the size of the blender nozzle for injecting the material. Proper response of materials is critical – does the supplier guarantee that the materials meet the manufacturer's specifications? The supplier (distributor or manufacturer) must be open and fair to ensure that the contractor provides the best service to his clients.
Waterproofing and base repair professionals have been using crack injection for over 20 years. It was a very effective and low cost solution for homeowners, while being a viable business venture for entrepreneurs. Not all things in life are too good to be true.