To date I have made two brass sculptures using the lost wax process for my MFA Show. It is truly a magical moment when they are born from the investment mould. Your baby has arrived into the world intact! However, there is still much preparation work to do before each cast is ready to be shown.
Firstly they must be cleaned to remove the investment, slag and wax that is still stuck to the surface: for this process I used the sand blaster. I then employed a wire brush to polish each building. Great care must be taken and protective goggles are essential. A quality wire brush is a must also as inferior tools can result in stray wire projectiles penetrating your soft skin at speed!
This could have been the final stage but I required a finish that made my buildings look old. To achieve this I used an antiquing fluid applied with a brush to a grease free surface.