Steel pipe and tube is typically subjected to the application of protective coating as a final manufacturing step. The coating is intended to provide temporary atmospheric protection and to maintain the appearance of stored pipe. Traditional coatings have been solvent and/or water based liquids sprayed onto the pipe. All currently available liquid coatings contain unacceptable levels of Volatile Organic Compounds (VOCs) which pose Clean Air Act Amendments compliance problems to pipe makers and processors. Hot melt technology can be successfully applied to the pipe coating process, eliminating coating solvents which are the source of VOCs. This paper describes the development of the new hot melt technology for this particular application. Performance factors of the new technology are compared to those of traditionsl coatings, demondtrating hot melt's ability to solve the environmental problem while meeting or exceeding the performance parameters established for liquid coatings.
New technologies in environmentally sensitive tubular coatings
Neue Technologien umweltempfindlicher Rohrbeschichtungen
1993
4 Seiten, 6 Tabellen
Aufsatz (Konferenz)
Englisch
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