Currently we use gold for all of our keypads.  I want to reduce the cost of a product and thought about switching to a carbon keypad.  I am not familiar with the process and wanted to know a few things.  We mostly use a water-soluble process and our entire product is washed.  Some boards are a mixed technology using SnPb currently.
 
?  Are there any Reflow solder concerns I should be aware of?
?  Are there any Wave solder concerns I should be aware of, like masking pads during wave solder?
?  Are there any other concerns period that I should be addressing.
 
Thank you,
 
Scott
 
 
 
 
 

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