Method of powder coating a substrate

Details Method of powder coating a substrate Method of powder coating a substrate

1999-07-16

2000-10-24

Parker, Fred J.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

427195, 427325, 427485, B05D 112

Patent

active

061363707

ABSTRACT:
In substrates, such as wood substrates, having sharp edges, corners and other surface discontinuities, in a front appearance surface, non-functional machining, such as formation of grooves, is performed on the rear non-appearance surface adjacent the surface discontinuities. Coating powder is applied, e.g., electrostatically, to the appearance surface of the substrate and the coating powder fused or fused and cured to form a continuous coating on the appearance surface of the substrate. The rear surface machining reduces cracking of the coating at the front surface discontinuities.
In some cases, non-functional machining is distributed over the entire non-appearance surface of the work-piece to promote out-gassing of volatiles to the non-appearance surface, thereby eliminating out-gassing-caused defects in the coating formed on the appearance surface.

REFERENCES:
patent: 5824373 (1998-10-01), Biller et al.
patent: 5882730 (1999-03-01), Kimura et al.

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