A common patina recipe using ferric chloride is typically used on metals like copper, brass, and bronze to achieve a range of brown tones. The basic components of this recipe include:
- Ferric Chloride
- Distilled Water
The proportions and specific method of application can vary depending on the desired result. Generally, you would dissolve ferric chloride in distilled water to create a solution. This solution is then applied to the clean surface of the metal, either by brushing, spraying, or dipping. The reaction time and the resulting color can vary based on factors such as the concentration of the solution, the temperature, and the type of metal. After achieving the desired patina, the metal is usually rinsed and neutralized to stop the reaction.
Always remember to handle chemicals like ferric chloride with care, using appropriate safety equipment and working in a well-ventilated area.
