conformal coating for harsh enviroment
conformal coating for harsh enviroment
(OP)
hi
could please suggest the best coating material (acrylic, urethane or others)for a printed circuit board, in fact a battery charger controller board, in a refinery app. which is known for the content of H2S, SO2 and NH3.
thanks and rgds
could please suggest the best coating material (acrylic, urethane or others)for a printed circuit board, in fact a battery charger controller board, in a refinery app. which is known for the content of H2S, SO2 and NH3.
thanks and rgds





RE: conformal coating for harsh enviroment
Urethanes are the nicest these days if you can use them. THE 'conformal coatings company' is Humiseal. They also seem to have good prices.
http://www.humiseal.com/
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: conformal coating for harsh enviroment
http://www
The other company I had in mind was Concoat who I see have been merged into Chase Humiseal in the intervening years.
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Sometimes I only open my mouth to swap feet...
RE: conformal coating for harsh enviroment
doug
RE: conformal coating for harsh enviroment
I take it repairs = throw it away?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: conformal coating for harsh enviroment
I am asking now for test or references from them.
rgds
RE: conformal coating for harsh enviroment
This is what one supplier told me
"We have contacted the manufacturer of the resin (urethane)used in the ( spray can P/N ). Unfortunately, they have no testing data for compatibility of the cured resin with the 3 corrosive gases we discussed: hydrogen sulfide, sulfur dioxide, and ammonia gas. They have plenty of solvent data, but none on the gaseous environments."
I have seen advertising from protection relays manufacturers saying that their products are protected for such gases.
Anybode can help again?
rgds