Method and apparatus for repair of polyolefin pipes and structures

A method of repairing a polyolefin structure at a damaged area thereof, comprising:

• (a) applying a filler material as necessary to fill the damaged area;
• (b) overlaying the filled damaged area with a transitional film having a first side adapted to bond to polyolefins;
• (c) bonding the transitional film to the polyolefin structure;
• (d) applying a reinforcement system over the transitional film, wherein applying a reinforcement system over the transitional film comprises applying a fiber-reinforced epoxy system which bonds to a second side of the transitional film.

A method of repairing a polyolefin structure at a damaged area thereof, comprising:

• (a) applying a filler material as necessary to fill the damaged area;
• (b) overlaying the filled damaged area with a transitional film having a first side adapted to bond to polyolefins;
• (c) bonding the transitional film to the polyolefin structure;
• (d) applying a reinforcement system over the transitional film, wherein applying a reinforcement system over the transitional film comprises applying a fiber-reinforced polyurethane system which bonds to a second side of the transitional film.

A repair system for repairing a polyolefin structure, comprising:

• optionally a filler material on the polyolefin structure;
• a transitional film applied over and bonded to the polyolefin structure, the transitional film having a first side and a second side, the first side adapted to bond to polyolefins, wherein the transitional film comprises a bi-material co-extruded film;
• and
• a reinforcement system, applied over the transitional film, wherein the reinforcement system comprises a fiber-reinforced polyurethane system bonded to the second side of the transitional film.

A repair system for repairing a polyolefin structure, comprising:

• optionally a filler material on the polyolefin structure;
• a transitional film applied over and bonded to the pipe, the transitional film having a first side and a second side, the first side adapted to bond to polyolefins, wherein the transitional film comprises a bi-material co-extruded film;
• and
• a reinforcement system, applied over the transitional film, wherein the reinforcement system comprises a fiber-reinforced epoxy system bonded to the second side of the transitional film.