|
Letter 3042
Mid-Phos EN salt spray
problems
-
I am currently having problems with Mid-Phos electroless nickel
passing salt spray testing. The process goes like this. Perchlor
degreaser followed by a short electrocleaning. Next comes a 40% acid
activator, followed by a Woods Nickel Strike, before the EN.
Phil Pace
- Tulsa, Oklahoma
-
How many hours do you expect the deposit to pass in NSS? What is
the thickness of your deposit? The Mid-Phos, unlike the high phos,
has relatively poor corrosion resistance properties. The plating
thickness is highly important, there is no point in checking NSS in
case that the thickness is less than 25 microns.
|
|
Sara
Michaeli
chemical process supplier
Israel
|
-
I would like information on electroless nickel,such as the
electropotential mechanism on zincate with Stabilzer of lead, and
thiourea. Any help would be appreciated.
Harold Koh
- Huntington Beach,CA
-
-
 |