Zincate and Electroless Nickel Question

Posted by admin on June 30th, 2009 at 03:44am

Caswell recommends their Zincate Pre-Treatment for (AL) parts prior to EN bath, which removes oxide as well as leaves a of zinc on the AL, and they say in part, "As the part is lowered into the tank, the zinc is etched away by the nickel solution." Yet, all I’ve read concerning zinc in the manual and on the forums says to avoid any zinc in the EN solution like the plague. Could someone explain this apparent contradiction, or am I not understanding what I read? For what it’s worth, the in question would be 6061 alloy, straight off the lathe.

Thank you kindly,

Gary

This is post is sent to the Surface section from a blog about Aluminium, , Plate, Metals, Nickel, Chemical, Anodising, Chrome , or Chromic acid. Post title is Zincate and Electroless Nickel Question and blog title is Powder Buffing – Caswell Inc. Metal Forum. Please click. to view the orijinal source.

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