Patent ID: 8206783

Claim:
A method of applying a barrier coating to pipes, comprising the steps of: (a) identifying problems with a piping system; (b) planning and setting up an onsite labor and equipment for the piping system; (c) air drying interior walls of the piping system; (d) profiling the interior walls of the dried piping system, wherein the step (d) of profiling includes the step of: introducing a dry abrasive agent into the piping system by compressed air from a source connected outside of the piping system; and air flushing the piping system to remove any remaining residuals in a single pass run, wherein the introducing and air flushing steps include: generating a vacuum in a second end of the piping system, wherein the compressed air and the vacuum are operating simultaneously with each other; (e) applying a barrier coating of at least approximately 4 mils to the interior walls of the profiled piping system; and (f) evaluating the interior coated walls of the barrier coated piping system.