Patent ID: 7348039
Filing Date: 2008-03-25
Classification: B05D,B08B,C09D,F16L

Abstract:
1. A method of making pipes of a plumbing system renewable, said plumbing system having straight pipes and a plurality of angled joints and fittings, said method comprising the steps of: forming a removable skin on all internal wall surfaces of said pipes by applying a cleaning solvent or a mixture of cleaning solvents, each of a low viscosity, through the plumbing system; removing excess cleaning solvent or mixtures of cleaning solvent from the plumbing system; circulating a primer through the plumbing system to coat said internal wall surfaces; removing excess primer from the plumbing system and drying the primer coated on said internal wall surfaces thereby defining a primer coating thereon; and circulating a topcoat through the plumbing system to coat said primer coating and drying the topcoat thereby defining a topcoat coating thereon wherein said topcoat coating and said primer coating in combination define said removable skin on said internal wall surfaces wherein said removable skin and contaminants thereon are removable by application of a conventional stripper.