Tips for Cleaning Your Minerals
2018-2-21 · We found DuPont Metal Lacquer No. 1130 and DuPont Thinner No. 3661 have the best satisfaction. However, on checking with DuPont I find they do not stock No. 1130 any longer but No. 1234, which is specifically made to protect aluminum, can be used for this purpose. No. 1130 can be secured but would have to be ordered special from the factory.