NS41 is a nickel stripper concentrate. This is used in combination with stabilized hydrogen peroxide, Cir130A, to strip nickel metal from copper substrates. NS41 gives very little copper attack. The NS41 process leaves the copper bright and shiny and ready for further processing. NS41 is used for electroless and electrolytically plated nickel. NS41 will not strip gold. Gold stripping must be done prior to nickel stripping, when necessary.