|
|
|
![]() |
Letter 1158 Removing electroless nickel plating from steel--- Are there chemical ways of removing electroless nickel plating from steel? And are there chemical ways of removing tin plate from steel? The criteria for either system - must not "poison" the surface nor cause loss of steel. And must be quick. Is there a dye check that can be used after treatment that will show the complete removal of either plating? Joe Redinger
--- Cyanide-based strippers are pretty good at complexing other metals while leaving steel untouched. But if you need something cyanide-free, you might want to talk to a specialist in nickel strippers, like Metalx [Lenoir, NC].
--- Joe: You might check with Enthone, they make a line of nickel & E nickel strippers. If I recall correctly it is called "N Strip". Good Luck
Paul D. Stransky, CEF
For high P EN, I like Metalx's strippers. Work well and tend to be cheaper and less of a pain to dispose. James Watts
- Please also see our FAQs on Stripping of Electroless Nickel. Regards,
. This is in response to Mr. Redinger's 1997 letter asking whether there's a dye to check if a steel part has been stripped of Nickel or other plating. I post this message for the curious. Generally in time you'll develop an "eye" for when a part is stripped. However if you simply immerse the part in [sulphuric] acid-copper plating bath (without current) the copper will contact plate to the steel through galvanic action and you'll be able to see any non-stripped areas. You can remove the immersion copper film quickly (a matter of seconds) by swishing the part in your strip bath. Regards, Steve Wilcox Steve Wilcox
![]() |
|
Save
This Page (why?) - Home - ©1995-2008 finishing.com