Differential processing of powder coated substrates

Details Differential processing of powder coated substrates Differential processing of powder coated substrates

2002-04-11

2008-10-28

Parker, Frederick J (Department: 1792)

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

C427S325000, C427S485000

Reexamination Certificate

active

07442409

ABSTRACT:
A method of providing a powder coating to MDF substrate panels wherein, by the differential treatment of the front and back surfaces of these panels, both surfaces can be coated at the same time and the effects of moisture and other volatile outgassing is controlled in such a way as to provide a blemish-free front facing surface with a minimal, but nonetheless acceptable, amount of blemishes on the opposite or back surface. Differential treatment is achieved by preparing each surface using different grades of sand-paper, applying different amounts of curing energy, whether infra-red or thermal, or by applying different thicknesses of coating to each surface.

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