1 00°/o Solids Polyurethanes as Protective Coatings to Prevention of External Surfaces Corrosion of Underground Gas Transportation Pipelines(Qazvin Gas Company)

The I 00% solids polyurethane coating technology is an excellent system for the internal and external corrosion protection of pipelines. Applications include standard external corrosion protectionfor oil and gas transmission lines as well as internal and external coatings for water and wastewaterpiping. The 1000/o solids polyurethanes are available in a wide variety of setting times ranging from very fast systems that allow rapid factory application to conventional brush and roller application to simple field castings. This paper covers the basic definition and history of polyurethane as well as thewide range of applications in a variety of industries. The paper covers the specific advantages of the J 000/o solids polyurethane coating systems for pipeline work in terms of applicator safety, application and performance. The paper covers some recent developments in the technology and covers some case histories as well.

Keywords:

1000/o solids , polyurethane , pipeline , corrosion protection , protective coating