Coating processes – Spray coating utilizing flame or plasma heat – Organic containing coating
Patent
1999-01-15
2000-11-14
Parker, Frederick
Coating processes
Spray coating utilizing flame or plasma heat
Organic containing coating
427195, 427203, 427314, 4274071, B05D 108, B05D 138, B05D 302
Patent
active
06146709&
ABSTRACT:
A process for application of a protective coating to a steel, concrete, or wooden structure so as to provide protection against corrosion, weathering, or other environmental damage in which the surface to be protected is heated to a temperature in a range of about 75.degree. F. to about 150.degree. F. after which a liquid thermoset primer is applied to the heated material in two stages. The first portion is solidified by heating and then coated with a second portion, forming an uncured liquid thermoset outer primer layer. A melted polymer powder layer is then applied by flamespraying over the uncured liquid thermoset primer layer, forming an intermediate polymer powder layer embedded in the uncured liquid thermoset primer layer. The intermediate melted polymer powder layer is then heated to a flow temperature of the polymer powder and a second layer of melted polymer powder is applied over the intermediate polymer powder layer, forming an outer melted polymer powder layer which then cools to form the final protective coating.
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Katz Joseph M.
Rush, Jr. William F.
Tamosaitis Victor
Institute of Gas Technolgy
Parker Frederick
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