Powder Coating is a dry coating that is sprayed onto pipe to give it a uniform, durable and high quality finish.  The powder is finely ground particles of pigment and resin that is electrostatically charged and sprayed onto a grounded part and then cured under heat to allow it to form a hard finish that is tougher than conventional paint and primer.  Powder coating is resistent to corrosion, heat, impact, abrasion, fading from sunlight and extreme weather.  Most of the time, pipe must be sandblasted before powder coating to provide the best possible surface to powder coat.