About the UV Cure System’s Materials
The liner material is an E-glass, corrosion-resistant (ECR) fiberglass mat pre-impregnated with either Palatal P-92 Polyester light reactive resin or Atlac E-Nova RE 3475 Vinyl Ester light reactive resin. The wet-out procedure is performed at the manufacturer’s plant in Austria (under controlled conditions). During this procedure, partial curing occurs. The partial curing transforms the resin into a gel state for safe handling and transportation; no hardeners are required for on-site field mixing.
The resin and glass laminate configuration eliminates any need for inner and outer coatings. The manufacturer provides a specially designed A+B epoxy for application over the outside of the resin at the laminate ends to create an adhesive seal between the repair and the host sewer pipe. The material is available in a variety of wall thicknesses, and can be overlapped for extended lengths (typical repair is 4 feet long).
Resin does not usually have adhesive properties. To ensure a watertight seal between the sectional liner and the host pipeline wall, a manufacturer-supplied A+B epoxy system is incorporated into the repair procedure. When the glass laminate (in gel state) is wrapped on the bladder, the A+B epoxy paste is mixed on a flat surface and applied toward the laminate ends.
The applicator (silicone bladder) extends beyond the laminate edge, thereby creating a beveled edge against the host wall, compressing the epoxy between the host wall and resin laminate. The result is a sealed, smooth transition to the sectional liner.