Sergei Slovenija
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- Slovenija Ljubljana
1. Degrease the metal, I will do this in a solution of caustic soda.how do you do a tannin patina ?
2. Allow a thin film of natural rust to form or using a mist cabinet with damp steam.
3. Prepare tannin by dissolving it in a mixture of ethyl alcohol and water, 30-40% strength. I think 10% tannin is enough.
4. Apply the solution and let dry. Repeat several times until desired shade of black is achieved.
5. Polish the film with felt, removing the glossy effect and excess non-adherent particles of iron tannate.
6. Cover the object with wax, I want to weld Ganosis varnish for this, for encaustic painting.
I bought technical tannin, for tanning hides, it is cheaper. Tannin for wine is noticeably more expensive.