Guide coat detect surface defects and method of sanding therewit

Details Guide coat detect surface defects and method of sanding therewit Guide coat detect surface defects and method of sanding therewit

1995-10-13

1998-02-24

Bareford, Katherine A.

Coating processes

Solid particles or fibers applied

Plural particulate materials applied

427277, 427289, B05D 500

Patent

active

057210110

ABSTRACT:
An adhesive-free, dry, free-flowing powder composition suitable for use in surface defect detection, where the powder composition comprises a physical mixture of particles of a colorant and particles of an extender, which mixture includes particles of colorant and particles of extender each having a particle size of less than 100 .mu.m. The powder compositions of the invention provide a simple, effective guide coat which readily highlights surface imperfections, such as scratches, orange peel effect and dry over-spray without the need for solvents. Also, there are disclosed methods of using such a powder composition to detect surface imperfections, an apparatus for applying same, a device for refilling such applying apparatus, and coated surfaces formed thereby.

REFERENCES:
patent: 3928655 (1975-12-01), Iwasa et al.
patent: 3941315 (1976-03-01), Gribble et al.
patent: 4351640 (1982-09-01), Schaffer et al.
patent: 4661369 (1987-04-01), Crane

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