Polyurethane Injection is a high-performance insulation and reinforcement solution used to effectively fill cracks, gaps and water leaks in structures and floors. This product expands rapidly after being injected in liquid form to fill cracks and gaps, then hardens to provide long-term insulation and support. Polyurethane injection protects the integrity of the structure and creates a strong barrier against water leaks.
Product Features
- Wateproofing
Polyurethane injection permanently stops water leaks on concrete, stone or brick surfaces by completely blocking water passage. - Flexibility and Durability
Thanks to its flexible structure, it expands and contracts, which adapts to the natural movements of the structure. It also does not wear or deteriorate over time. - Fast Drying and Effectiveness
It hardens quickly after injection and provides effective insulation, thus offering long-term results. - Structural Reinforcement
Polyurethane does not only provide waterproofing, but also increases the durability of structural elements by filling cracks and supports the structural integrity of damaged areas. - Access to Difficult Areas
It can be easily injected into hard-to-reach areas from small cracks to deep cavities and provides an effective filling.
Application Areas
- Foundations and Basements
It is an ideal solution for repairing water leaks in the foundations and basements of buildings. - Tunnels and Underpasses
It is widely used in tunnels and underpasses to provide water sealing. - Concrete Structures
It is used for insulation and reinforcement of cracks in bridges, viaducts, highways and reinforced concrete structures. - Surface Repairs
It is applied to fill cracks in floors or walls and to restore the surface. - Warehouses and Industrial Areas
It is also used in industrial facilities where chemical and water leaks need to be prevented.
Polyurethane injection, also known as polyurethane grouting, is a waterproofing technique that uses expanded injected polyurethane to prevent water from flowing through it, typically using voids or cracks in concrete. This is especially effective in solving water leakage problems when applied below the leak area or in the sub-floor ceiling where the leak is occurring.
A hole will first need to be drilled into the bottom of the ceiling to allow the polyurethane foam to be injected using a pressure washer. The pressure will cause the polyurethane to rise into the cracks or voids caused by water damage, which will then fill completely when expanded. Polyurethane injection is a recommended method for actively leaking cases involving concrete slabs.
Polyurethane Injection to Repair Cracks
Once the polyurethane injection has entered an expansion process with the water, any cracks that have been filled will have a mixture of water and polymer foam type polyurethane grout. The mixture will then expand until there is no more room to fill, successfully sealing the pathways through which water has entered the material.
Settlements
Polyurethane injections are a cost-effective way to repair leaks coming into your home, especially water coming from outside. Polyurethane can also be injected into the roof to prevent further leaks and damage to property.
Industrial Features
Polyurethane grouting is also commonly used to repair factory or warehouse floors that may have been damaged after prolonged and repeated use of heavy machinery such as forklifts. Polyurethane grouting can also be applied in many areas where there is visible leakage. It is commonly used in areas such as drains, piping, and ceilings. Similar to residential applications, you can use it to repair any damage to your properties due to rain or leakage.
Typical Causes of Building Cracks
Poor Drainage
Moisture is the main cause of cracks in buildings. Poor drainage can cause water leaks that create holes and wear away concrete and other building materials over time. Almost all properties are susceptible to damage from water and moisture. The leaks and cracks that they can cause can be successfully treated with polyurethane injection.
Heavy Load
The heavy loads caused by regular handling of machinery such as forklifts and trucks will cause cracks in the floor over a long period of time. Cracks can be severe, especially in areas with high traffic volumes. Many warehouses with tin roofs can leak over time, causing water in the floor to leak, creating holes and gaps in the cracks, which can be repaired by filling them with polyurethane.
Wear and Tear
Water continues to be the most common cause of cracks in buildings. As buildings age, cracks can develop due to wear and tear, especially if there is inadequate maintenance. This is especially important in areas such as roofs, balconies and wet areas that are exposed to water. Filling these cracks with polyurethane can help prevent leaks without a major renovation.
Polyurethane Properties
Polyurethane is a liquid resin that can be injected into cracks and other voids in concrete structures. When injected into concrete during a leak repair, polyurethane undergoes a chemical transformation from a liquid to a solid within minutes.
Polyurethane’s suitability as a waterproofing method is due to its natural properties. It has a very short curing time, which makes it an ideal material for sealing active leaks. It has a low viscosity, which allows it to easily seal small cracks after curing on moisture. After an injection, the polyurethane will recover and maintain its flexibility, allowing subsequent movement in the structure while keeping the voids closed, thus preventing leaks from occurring.
Advantages of Polyurethane in Waterproofing
If you are considering using polyurethane injection for leak repair, it is useful to know that it has some advantages over other waterproofing methods. Polyurethane is a versatile polymer with industrial applications for coating and insulation purposes. It is a strong adhesive and waterproofing material.
Being flexible and tough, polyurethane will provide good protection against membrane cracks and building movements that could compromise waterproofing effectiveness. Being highly elastic, it provides resistance to thermal expansion and deterioration due to exposure to sunlight. This makes it one of the most suitable methods for application on surfaces such as roofs and balconies.
It is popularly used to repair active leaks due to its fast drying properties and ability to seal small sheet metal cracks, which are otherwise difficult to detect. It is a relatively clean and low-cost solution when compared to other methods that involve heavy hacking. In addition, it requires little or no maintenance.
Polyurethane Injection Waterproofing and Leak Repair
Cracks in concrete structures can be caused by wider environmental factors such as thermal movement, soil movement due to nearby construction work and others. While not severe, small cracks will not cause any visible leaks or damage. However, cracks will often increase over time due to water penetration, leading to leaks and property damage. We offer a comprehensive polyurethane injection service to assess and carry out the necessary repairs using modern methods. As soon as you observe any visible leaks, it is wise to take action to protect your property from further water damage.
Polyurethane Injection is a reliable and effective solution for waterproofing, crack repair and structural reinforcement projects. It offers excellent results even in the most difficult areas thanks to its high performance, flexibility and durability. Contact us for more information, let us offer special solutions for your projects!
