Liner for waste water system rehabilitation

Details Liner for waste water system rehabilitation Liner for waste water system rehabilitation

2007-10-09

2007-10-09

Fletcher, III, William Phillip (Department: 1762)

Coating processes

Interior of hollow article coating

C427S243000, C427S373000

Reexamination Certificate

active

10798190

ABSTRACT:
A technique and device for rehabilitating or repairing waste water system components or the like, comprising a spray-applied, multi-layer liner which seals the components and imparts structural integrity. The liner comprises a primer layer, a first moisture barrier layer, a foam layer and a second moisture barrier layer. The first and second moisture barrier layers are preferably made of the same material and form a skin on both sides of the internal foam layer. The combination of the foam layer and the two moisture barrier layers imparts structural strength and rigidity to the cured liner.

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