When mainlines leak or corrode, they can damage above ground surfaces, cause pollution and start severe flooding in treatment facilities. The Perma-Liner Main Lining System uses the most technologically advanced cured-in-place pipe lining to rehabilitate city pipes.Perma-Liner Perma-Main Inversion Liner Tubes are manufactured in accordance with specifications of Perma-Liner and will comply with the guidelines of ASTM F 1261 and ASTM F 1743. The general thickness of the liners can be provided from 1.0 mm to 100 mm in accordance with design specifications. Perma-Liner Perma-Main Liner Tubes can be delivered dry or factory wet-out (resin impregnated). The factory wet-out tubes
