Sodium percarbonate (Na2H3CO6 ) is a hydrate formed between sodium carbonate and hydrogen peroxide, and is more properly written 2 Na2CO3 + 3 H2O2 . When mixed with water it dissociates into sodium ions, carbonate ions, and hydrogen peroxide, which subsequently decomposes into oxygen and water through a series of intermediate steps. At concentrations above […]
When applying a paste cleaner, a toothbrush is useful for buffing tight spots and working into the pores of welds; follow by buffing with a cotton cloth. A green 3M scrubby pad helps for removing more aggressive stains. Continued rusting in welded areas might indicate a developing failure, requiring replacement. Rinse thoroughly with fresh water and mild soap when done buffing.