What is the recommended/allowable thickness for Electroless Nickel Plating for corrosion resistance? Can anyone recommend anything other than Mil-Spec (Mil-A-8625) as a supplement? Thanks in advance.
For 8 ~ 11 % phosphorus containing electroless nickel coating 04 ~ 06 micron coating can give you more than 1000 hrs of SST test life and Humidity test life.
The addition of phosphorus improves corrosion protection and you can have 25 micron thick coatings or more for added protection. For corrosion protection the coating must be 100% continous. The problem is, as with most coating, is always on or in the corners. The sharp features, particularily internal corners, don't get plated to the same consistancy and external corners are vulnerable to damage.
As for spec's. MIL-Spec's, DEF-Stan's etc are not supported, out of date and only good for guidance. Go to a number of processors/platers and get 'best industry practice' advice and write you own specification.
Electroless Nickel Plating Thickness
Re: Electroless Nickel Plating Thickness
