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Metal finishing Q&As since 1989

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Baked enamel vs. field applied electrostatic paint

What is a more durable finish for exterior aluminum louvers, shop applied baked enamel or field applied electrostatic paint.

Scott Huether
architect - New York, New York, USA
2004

2004

Dear Scott,

Durability is a question of "how will my louvers perform once installed" Outside performance will be enhanced by first considering the type of pre-treatment prior to coating.

Coatings consist of many types of resin systems - choosing the wrong type wether its applied in the factory or outside, air-dried or baked the wrong choice will result in disaster.

My choice: pre-treatment-Chromate Coating - powder coat specifying a polyester resin system.

Terry Hickling
Birmingham, United Kingdom

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