S.S. 001 (Stannous (Tin) Sulphate) & Aluminum Anodizing Chemicals S.S. 002 (Stabilizer). These products are used for various electrocolouring such as Light Brown to black. S.S. 001 and S.S.002 are added together at a certain ration in the bath and act as supplementary to each other. Where as S.S. 001 produces required colour. S.S. 002 acts as a stabilizer.