Learning Center

Japanese Patinas

Learn how to safely add exquisite Japanese patinas to your metal jewelry. Our articles cover many traditional techniques, recipes, and materials.

6 ARTICLES
Article
Brief Notes on Shakudo

As with most Japanese metal coloring methods the techniques are metallurgically based rather than solution oriented; in the West we tend to use a myriad of coloring solutions and limited number of alloys; in Japan there are a limited number…

Article
The Patina Studio

It is impossible to pretend that a single description of tools, materials, and equipment will suit all needs. Obviously these elements will depend on the scale of the work you do, the layout of your studio, and the resources at your disposal.…

Article
Testing Japanese Patina Solutions

It is important to understand that many variables will affect patina results. Our tests were made on smooth, rolled metal. Textures will change the color, and cast metal has a different structure that can also influence color. These samples…

Article
Japanese Special Patinas

The rich history of Japanese patinas is the result of hundreds of years of experimentation, innovation and tradition. This article covers some special Japanese Patinas; Wara-ibushi, Nuri-iro, Iroe-do, Ryuka (Sulfuration and Concentrate),…

Article
The Foundation of Japanese Patinas

Niage is an important Japanese patina, and one of the most basic. It has been used as the base color on copper and copper alloys for centuries, and today it is also used as a final patina. As is true of all the recipes given here, these proportions…

Article
Introduction to Japanese Alloys

Japanese artists have contributed significantly by using their unique alloys in innovative combinations. Perhaps the best example of this is mokume-gane, a lamination process in which layers of various alloys are manipulated to create…

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