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Epoxy FAQs

Epoxy Lining is an approved American Water Works Association (AWWA) M28 lining method used to rehabilitate water and sewer mains. Prolonging the life expectancy of the existing pipe, epoxy lining acts as a corrosion barrier while filling pinhole leaks and minor cracks within the host pipe.

Epoxy Lining can be used to rehabilitate virtually any type of pipe including damaged concrete, PVC, fiberglass, clay, cast iron and ductile iron pipelines and field uses such as vertical vent pipes, sanitary waste, roof drains, chiller lines, underground storm and sewer lines, transmission lines, fire suppression lines, and even underground tunnel and conduit systems.

Yes, Our DC1000E Epoxy Lining System is AWWA/ANSI/NSF61 approved for potable water use and certified to NSF/ANSI 372 conforming to the requirements for “Lead Free” plumbing products.

The USP Epoxy System is designed for an estimated service life of 30 years or greater.

With access to one end of the host pipe a brush casting system is inserted which applies an epoxy coating to the internal surfaces of the host pipe. Access points are generally existing openings such as manholes, basins, vaults, cleanouts, outfalls, spool ends, etc.

Epoxy installation time will vary based on access, condition, pipe diameter, and external weather and temperature conditions. Generally, pipes are out of service for 8-hours with flow restored to lined pipe within 4-hours of coating.

Yes, Access can be gained by excavating one or both ends of the pipe, entering through a clean-out or fixture line, or by removing spool pieces or valves.

Yes, the USP Epoxy System is designed to line through directional changes, turns and bends in the host pipe of up to 90 degrees. Lines with numerous elevation changes, drops and or bends are appraised to devise an installation plan to address the pipe geometry.  

Vertical stacks (roof drains, sanitary risers, vent risers) are generally accessed from the rooftop. First the stacks are cleaned and televised in preparation for Epoxy. Once prepared, the Epoxy coating system is installed into the “host pipe” traveling down through the length of the vertical stack to the basement or bottom floor level. The coating machine then reverses direction travelling upward while applying the Epoxy coating to the internal pipe surfaces. Most stacks are Epoxy lined and back in service within the same day. Because all construction activities take place from the rooftop there is very little disruption.

Depending on conditions and pipe diameter Epoxy coating can be applied in continuous lengths up to 150’ linear feet from a single access point and 300’ with access from either end.

The host pipe must be cleaned (to NASSCO Standards) including the removal of deposits settled and all internal debris from the pipe line that will interfere with the installation and the final product delivery of the Epoxy. Acceptable methods of surface preparation include high pressure water/air, sand blast, chain flail, or sanding side grinding panel.

USP Epoxy Methods & Materials are comprised of a 100% solids epoxy coating meeting the requirements of NSF/ANSI 61-5, and ASTM Standards for epoxy coating systems. All materials are certified to NSF/ANSI 372 conforming to the requirements for “Lead Free” plumbing products, and tested to ASTM D638-14, ASTM D695-15, ASTM D790-15e2, ASTM D790-14e2, and ASTM D4541.

Yes, Epoxy coating can be designed to meet internal operating pressures in excess of 200psi depending on pipe diameter.  

Yes, Epoxy can be designed to meet internal operating temperatures in excess of 180°f/82°c.