High-build epoxy

A long term solution for protecting against corrosion and rehabilitating America's deteriorating infrastructure is Raven Lining System's Raven 405 ultra high-build epoxy. The product's high physical strength allows it to be designed as a structural lining in manholes, pipelines, tanks, and other deteriorated structures. It has a broad range of chemical resistance but specifically protects against the hydrogen sulfide and sulfuric acid commonly found in wastewater. Raven 405 exhibits superior bond to concrete, steel, masonry, fiberglass, and other surfaces.

Raven Lining Systems
http://ravenlining.com