On 2012-05-06, David Lesher wrote:
"Dennis" writes:

I cant speak for Miller..but Lincoln are so covered with plastic sealent
that gettting to components is nearly impossible

Gunner

They are *******s when they do that. I've soaked boards in different
solvents for a few days to break the sealant down. Sometimes it'll form a
gel that you can brush off.

They spend money on parylene coating for a reason. It protects
the board from water, corrosion, and also prevents sneak paths
via conductive crap deposited on the traces.

But I'm sure *your* welders are kept in clean-room conditions,
and such would never ever be exposed to such hazards...

{You want PITA: take the WWII fungusproofing seen on radios such
as command sets, etc.}


Dave, I also cannot imagine welder boards without conformal
coating. Additionally, I think that engine driven welders should have
all boards enclosed in sealed enclosures with watertight
connectors.

i