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Author | Topic: "Heat Painting" on Sterling |
WhisperOne unregistered |
![]() ![]() ![]() [01-1456] I've collected Sterling souvenir spoons for years. I have a spoon with gold wash, bronze and copper colors in the bowl. Someone told me that the metals were applied with heat painting. The washes are translucent and are not enamel. Anyone have any ideas as to just what "heat painting" was and how it was done? WhisperOne IP: Logged |
mefecit Posts: 7 |
![]() ![]() ![]() ![]() Hello: Two types of "heat painting". Both are patination processes, one uses heat to oxidize alloys in the silver, copper most often but sometimes others. Some odd alloys were used, but more common is a wash of a patina solution. There are big books with hundreds of different "soups" for different shades. These are not paint or dyes , they react chemically, forming oxides {tarnish} sulphides {liver of sulfur black} or chlorides. Just as it is best not to play with the patina on a bronze statue, these finishes are best left alone. IP: Logged |
WhisperOne unregistered |
![]() ![]() ![]() Hello mefecit, First, thanks for the information already provided. If I post a photo of the spoon bowl in question do you think you could tell whether it is a wash or uses heat painting? Question 2 did both the wash and heat painting techniques use only metal oxides? I've seen copper and a bronze or brass like color used as well as gold. Are these the only ones used? Kat IP: Logged |
mefecit Posts: 7 |
![]() ![]() ![]() ![]() Hi: There are many types. Some deposit other metals, "auto caion plating", basically works like electro plating but with chemical reactions rather than electric current. If you post pictures I may be able to tell. Even conservators in museums have a hard time telling how some things were done. IP: Logged |
Paul Lemieux Posts: 1792 |
![]() ![]() ![]() ![]() Kat, do please post pictures of your spoons. I am interested in seeing examples of this technique, many of our other users probably are as well. I am curious to see if heatpainting is something I have seen before or not. IP: Logged |
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