Water-based flushing for paints and other coatings

Details Water-based flushing for paints and other coatings Water-based flushing for paints and other coatings

1995-12-29

1997-05-27

Soderquist, Arlen

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 221, 134 2211, 134 2213, 134 2214, 134 2217, 134 2218, 134 2219, 134 34, 134 38, B08B 900, B08B 700

Patent

active

056328222

ABSTRACT:
An apparatus, method and purge concentrate are capable of purging water-based and non-water-based paints and other coatings from automated and manual equipment using non-VOC containing aqueous purge solutions. Purge solutions of the invention contain water, detergent builder and wetting agents. The solution is maintained at a selected concentration and at a selected elevated temperature range by continuously recirculating the solution through the automated coating equipment. For manual equipment the solution is set at the correct concentration and maintained at the correct temperature range. For an automated system, spent purge solution can be reconditioned and recirculated to avoid waste.

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patent: 5221047 (1993-06-01), Akeel
patent: 5223306 (1993-06-01), Bartow
patent: 5306350 (1994-04-01), Hoy et al.
patent: 5322571 (1994-06-01), Plummer et al.

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