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In dimmed light, mix ferric oxalate with palladium salts to create the sensitizing agent.

Wash the print in several baths, including a clearing agent, to remove all residual chemistry. To help you with this project, are you planning to use: Sunlight or a UV lamp for exposure? buy palladium

Allow the coated paper to dry completely in a dark environment. In dimmed light, mix ferric oxalate with palladium

Place a contact negative (a negative the same size as the final image) directly onto the paper, hold it in a frame, and expose it to a strong UV light source (like sunlight or a UV lamp). In dimmed light