Perma-Liner™ Manhole Rehabilitation: Now Offering Newly Developed Patented Technology for Manhole Rehabilitation.
Our uniquely designed liner is universally sized and engineered to create a structural cured-in-place seal to fit all manholes including; barrel sections, eccentric and concentric cones constructed of brick and mortar, pre-cast or block. The vacuum powered, resin-impregnated liner is inverted manually into the manhole and uses an inflation device to press the liner against the existing manhole wall. This contact allows for the liner to form to the shape of the manhole. During this process excess resin migrates into imperfections, where the liner is sealed and mechanically held in place. The cured-in-place manhole liner is engineered to resist freeze-thaw cycles and create a water-tight, corrosion resistant structural lining that eliminates infiltration and inflow. Depending on chimney or full- depth manholes, cure times will occur within one to two hours ambient. Once cured, the result is a smooth interior surface.