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Tannic Acid Plate
The steel plate is treated in a rotating movement with Tannic Acid from Oak. Different shades of blue become visible on the steel by the intensity of tannic acid. The oak frame is treated on the inside with the rust of steel to darken the wood and join the two materials.
Plates is part of the project Tannic Acid. The project reveals the exceptional similarity in colour of oak and steel after the natural transition. The reaction between tannic acid and red iron oxide turns the materials into dark blue.