Process for Coating the Interior Surface of Non-Metallic Pipes with Metal Valves and Metal Fittings
AssigneePipe Restoration Technologies, LLC
InventorsLarry L. Gillanders, Steven A. Williams
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AssigneePipe Restoration Technologies, LLC
InventorsLarry L. Gillanders, Steven A. Williams
Estimating the term…
Methods, processes, compositions and systems for preventing leaching effects from water pipes (such as lead, steel and copper) having an inner diameter of at least approximately 12 mm. 2-part thermoset resin coating is applied to the inner surfaces of the pipes where the curing agent can be a phenol free and plasticizer free adduct type. The coating can reduce heavy metals, such as lead, from leaching from installed pipes to less than approximately 10 μg/L (10 ppb). When cured, specific leachates, Bisphenol A and Epichlorohydrin from the coatings will be (less than) <1 μg/L (1 ppb) with overall TOC levels measured at (less than) <2.5 mg/L (2.5 ppm). Pipes can be returned to service within approximately 24 hours, and preferably within approximately 4 hours.
A method for providing a protective barrier coating to interior surfaces of non-metallic water service pipes with at least one metal fitting exposed to drinking water passing through the non-metallic water service pipes, comprising the steps of:
A method for reducing the effects of corrosion including leaching of metals from inside surfaces of non-metallic water service pipes with at least one metal fitting that are exposed to drinking water passing through the non-metallic water pipes, comprising the steps of:
A method for reducing the effects of corrosion including leaching of metals from inside surfaces of non-metallic water service pipes with at least one metal fitting that are exposed to drinking water passing through the non-metallic water pipes, comprising the steps of:
Dependencies are inferred from the claim text.