Patent ID: 9724730
Date: 2017-08-08
CPC Classifications: B05D,C08J,C09D,C09K,F16L,Y10S

Claim:
1. A method for applying a barrier coating leak sealant to internally seal leaks in a pipe, consisting of the steps of: providing a source of compressed air; providing abrasive particles; providing a filter that includes a vacuum; mixing an epoxy barrier coating leak sealant with inert material fillers selected from at least one of an epoxy, glass, plastic foam parts, cork or clay to form an epoxy leak sealant coating mixture to fill in the leak openings; removing moisture from the pipe with the compressed air; cleaning interior wall surfaces of the pipe by blowing the compressed air charged with the particles inside of the pipe; simultaneously drawing the compressed air charged with particles to an exit end and collecting debris from the cleaning step with the filter that includes the vacuum; introducing the epoxy leak sealant coating mixture into the pipe by a continuous positive pressure from the compressed air in a single sealant stage; and coating the interior walls of the pipe with a single layer of the epoxy and stopping leaks during the single sealant stage.