The gold standard in Main Lining CIPP Solutions. Each liner is manufactured and pre-impregnated with styrene resin to the custom design requirements for each project.  Each tube is constructed of either a single or several layers of felt with the outermost coated in polypropylene, butt sewn to complete the extrusion and heat taped. Conforms to all ASTM F-1216 requirements. Available for pick up or delivery.