Polyurethane (PU) grouting is considered to be among the best practices that prevent active water leaks on the cracks of concrete. But assuming you are thinking about this solution in a basement, tunnel or foundation, you probably want to know: how long will this solution last? It all depends on a number of factors, such as the quality of the grout, how it is applied, and what conditions it is exposed to. The company Nantong Yuru Engineering Materials Co., Ltd. is a high-tech company with an experience of more than 20 years that produces high quality Injection Grout and Grout Pumps that can be used to seal a permanent leak. We discuss the lifespan of PU grouting and its influencing factor below.
Typical Lifespan: 10 to 20+ Years
In normal condition, professional grade PU grouting takes a lifespan of 10 to 20 years. And in most instances it may be still longer--even the life of the structure itself. Quality polyurethane grouts like those that are manufactured by Nantong Yuru are designed to withstand degradation caused by water, soil chemicals and mild acids. Polyurethane is flexible as compared to cementitious grouts which shrink and crack, or epoxy grouts which are brittle. This is because it can stretch and shrink with the concrete as the temperature varies or the building settles down. Our Injection Grout can be used to produce a permanent, watertight seal which cannot be broken by time when correctly used with a precision Grout Pump.
Factors That Extend PU Grout Lifespan
A number of things are in your favor to bring on the highest possible longevity of PU grouting. First, hydrophilic (water-loving) polyurethane use to make sure that the grout remains active to react with any moisture that might later enter the crack and swell to keep a tight seal. Second, technique of injection is very important. When our Grout Pump provides the grout at the right pressure, the grout will fill up the entire crack network, not just the surface. Third, it stops the grout coming into direct contact with UV light to increase its lifespan as UV radiation can break down most polymers. When used above ground we suggest applying our Waterproof Coating or Floor Paint to the grouted area to protect the area against sunlight. Fourth, buildings with little vibration or movement exert less stress on the grout to enable it to have a long life.
Factors That Shorten PU Grout Lifespan
On the other hand, there are conditions that can make PU grouting have a shorter effective life. The polyurethane polymer will be subject to attack by extreme chemical exposure, including strong solvents, fuel or highly concentrated acids over time. This could happen because the flow of high-pressure water at very high velocities could slowly erode even the hardest grout. Another significant factor is poor installation. Failure of the seal can take place in a few years unless the grout is injected deep enough and the crack is cleaned first. That is why Nantong Yuru does not only offer high quality Injection Grout, but also on-site construction service support and technical consulting. Our team undertakes to make sure that all injections are properly made in order to last longer.
How to Maximize the Lifespan of Your PU Grouting
These best practices will help to achieve the maximum service life of your PU grouting. To begin with, it is advisable to select a well-known manufacturer. Injection Grout by Nantong Yuru is formed with the help of the international advanced technology and corresponds to ISO9001, ISO14001 and CE standards. Second, have the correct equipment. Our Grout Pump applies a steady, adjustable pressure in order to fill cracks fully. Third, think of a hybrid solution. In critical structures, apply injection grouting and surface protection, such as our Waterproof Membrane or Polyurethane Polysulfide Sealant at joints. Fourth, do regular inspection. Check sealed cracks at regular intervals of a few years to check the occurrence of re- leakage or structural movement. Re-injection is often cheap and fast to undertake in case minor problems emerge. PU grouting has the potential to last 20 years or longer when properly installed and with periodic maintenance.
Why Choose Nantong Yuru for PU Grouting?
Nantong Yuru Engineering Materials Co., Ltd. was founded in 2003 and is located in a strategic position in the intersection of Nantong, Yancheng and Yangzhou, and has easy access to sea, land, and air transportation. We possess a registered capital of 81.88 million yuan, a modern plant of 16,888.68 square meters and an annual production of 15,000 tons of waterproofing materials. We became the first in our industry to achieve certification of ISO9001, ISO14001 and CE. Our qualification of waterproofing contracting is also second level and we have been honored with various national and building materials industry awards.
You are selecting decades of experience as you decide on our Injection Grout and Grout Pump. Call us today to get a lasting solution to your water leakage problems.
