Ciruit Board Protection
gregz wrote in
g:
"Stormin Mormon" wrote:
WD-40 comes to mind. But, is it a water displacer, or a
lubricant? The myseries of the universe.
it's mostly kerosene,dewaxed.(around 70%) Check the MSDS....carefully.
Oil floats on water, not the other way around. It evaporates quickly,
so it's not a good lube.
That being said, sometimes after I wash electronics with water, Then
spray with wd40, and continue drying with heat.
Aside from usual conformal coatings, when clean and dry, might spray
with Krylon crystal clear varnish coating. Then bake.
Greg
spray your circuit boards or electronics with WD-40 and heat,and you'll end
up with a gummy PCB/unit that attracts dirt. you want to REMOVE oils,not
add them.
If you want to remove water,use 90% isopropyl alcohol,then air dry.
At Tektronix,I washed PCBs,blew them off with air,and then dried them in an
oven at 140degF. I used to spray-wash entire
instruments(oscilloscopes,signal generators,etc),just to get all the
dirt,oil and grease off them. Even tobacco film.(yecch)
then 3 days minimum in the drying oven.
I even used a home auto dishwasher and Calgonite to clean/degrease high-Z
voltmeter PCBs.
--
Jim Yanik
jyanik
at
localnet
dot com
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