The curing profile of each liner utilizes a delicate balance of resin catalyst level, curing temperature and time of exposure to maximize the installed physical properties.
After the inversion is completed, a suitable heat or UV light source is required to cure the pipe liner.
For traditional felt tube cured-in-place pipe projects, the equipment should be capable of delivering hot water or steam throughout the section to uniformly raise the water or steam temperature above the temperature required to affect a cure of the resin. The temperature profile is closely monitored in accordance with Inliner's patented heating methods to produce the optimum installed physical properties. The decision to cure a liner with hot water or steam is based upon many factors, most importantly the liner thickness, length and project site geometry.
In the UV curing process, a mechanical string of lights, familiarly referred to as the light train, is moved through the liner at a controlled rate of speed. The liner is pressurized with air to ensure total expansion of the product during the curing process.
Unless otherwise specified by the owner, our technicians are trained to evaluate the project parameters and apply the curing methodology that best suits that particular application. The following lists some of the pros and cons for each method of curing.