(207) 622-6229 info@kenway.com

Custom Fiberglass Trench Liners

Kenway custom molds FRP Trench Liners to fit a variety of trench sizes and grating requirements. We fabricate lengths up to 40 feet and will shop-assemble elbows, tees, laterals, and other connections to fit your application. The Kenway fiberglass liner is ideal for new installations as well as the restoration of old trenches.


  • Kenway FRP Trench Liners eliminate the need for concrete forms and incorporate steel reinforcing rods to ensure adequate support and anchoring to the concrete.
  • Segments can be joined by gasketed/bolted flanges, adhesive, or field laminated to ensure continuity.
  • Premium vinyl ester resins and hand lay-up constructions methods ensure high corrosion resistance for demanding chemical environments.
  • Ability to pre-slope the trench — ranging in depth from a few inches to several feet — for ease of installation.
  • Ability to bond to an FRP sump liner and ensure integrity throughout the system.