pretreatment steps for different ground materials
steps | steel | stainless steel | colored metals | aluminium | magnesium |
hot degreasing | x | x | x | x | x |
pickling acid or alk. | x | (x) | x | x | |
condition 1 | x | ||||
condition 2 | x | ||||
deoxidizeing | x | ||||
zincate | x | ||||
watt`s nickel | optional | ||||
en - prenickel | optional | ||||
electrol. copper | optional | ||||
electrol. degreasing | x | x | x | ||
neutralizeing | x | x | x | ||
nickel strike | x | x | |||
electroless nickel | x | x | x | x | x |
further layers | possible | possible | possible | possible | possible |
between the steps correspondingly rinsing