SEDL / STP / STP646-EB / STP27318S

Corrosion Prevention with Thermal-Sprayed Zinc and Aluminum Coatings

Longo, FN
Manager, METCO, Inc., Westbury, NY

Durmann, GJ
President, Coating Systems and Technology, Inc., North Babylon, NY

Pages: 18    Published: Jan 1978

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Abstract

This paper presents the results of 19 years' testing, undertaken by the American Welding Society, to evaluate flame-sprayed zinc and aluminum coatings, sealed and unsealed, applied to low-carbon steel.

Panels were exposed to seawater at mean tide and below low tide levels at two different locations. Panels were also exposed to atmospheric conditions at six different locations including rural, industrial, salt air, and salt spray environments.

The results indicate that low-carbon steel can be protected from the corrosive effects of these environments for 19 years or more by the application of flame-sprayed zinc or aluminum coatings.