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 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.