METHOD FOR SINGLE-STEP SPRAY APPLICATOIN OF A LINER FOR SYSTEM COMPONENTS

摘要

A single-step, spray-applied, multi-layer liner seals the components and imparts structural integrity for lining a system component. The multi-layer liner includes an inner or first moisture barrier or skin layer, a foam layer and a second moisture barrier or skin layer. Where desired, a separate primer layer can be applied to wet surfaces and in order to form an enhanced bonding layer between the system component, typically a concrete or cement surface, and the first moisture barrier or skin layer. The first and second moisture barrier layers naturally 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.

主权项

1. A method for providing an interior lining for a structure, the method comprising:
comprising: a. Providing a source of closed-cell foam forming material; b. Providing a source of skin forming material; c. Simultaneously introducing the closed-cell foam forming material and the skin forming material into an impingement mixing nozzle, for mixing the closed-cell forming material and the skin forming material and releasing the combination under pressure; d. Directing the combination toward a substrate surface; e. Permitting the combination to impinge upon the surface for forming a coating thereon, wherein the coating forms a inner skin adjacent the surface and an outer skin with a closed-cell foam layer therebetween.