Coating processes – Restoring or repairing – Metal article
Patent
1987-10-02
1989-01-24
Childs, Sadie
Coating processes
Restoring or repairing
Metal article
427309, 427327, 4273881, 427409, 427416, B32B 3500
Patent
active
048001015
ABSTRACT:
A method for restoring and preserving bronze gravestones is disclosed and calls first for cleaning the surface to remove any scale or corrosion present by applying a dilute acid solution to the bronze surface. Then, any raised features are roughly polished after which the entire surface is coated with marker stain which will ultimately provide a contrasting background to the raised features. After the marker stain has dried, it is selectively removed from the raised features which are then further polished with fine steel wool. A clear lacquer finish is applied over the surface and allowed to thoroughly dry, preferably overnight. The restoration process is completed by applying a unique liquid preservative mixture to the metal surface. One preferred embodiment of the preservative contains, by weight: paraffin--19%, mineral spirits--70%, lemon oil--3% and silicone--8% although other proportions are discussed and contemplated. Subsequently, the preservative is applied periodically to the marker and allowed to dry by dissipation of the mineral spirits. It has been found that, even in harsh environments, a monthly application of the preservative to a marker which has been restored according to the subject method will protect the marker indefinitely and will provide it, at all times, with a beautiful and legible appearance.
REFERENCES:
patent: 2923608 (1960-02-01), Margulies
patent: 2968577 (1961-01-01), Helling et al.
Childs Sadie
Phillips James H.
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