Bronzart offers restoration services for bronze sculptures which have areas of damage or wear. The patina is the surface colored layer that can fade over time due to exposure to the elements. To restore the patina of a bronze sculpture, the sculpture is first cleaned to remove any dirt, grime, or other contaminants using specialized cleaning solutions.
Once the sculpture is clean, any areas of damage or wear are repaired, such as by filling in cracks with weld and then smoothing out any scratches. Next, a new patina is applied to the sculpture using chemical treatments and heat. The type of patina used will depend on the desired final appearance of the sculpture. For example, a green patina can be created by exposing the bronze to chemicals that react with the metal to form a layer of green colored copper carbonate.
After the new patina is applied, the sculpture is often sealed to protect the patina from further wear or damage. This can be done by applying a coat of wax or a clear lacquer.