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PCBa facilitates offer PCB ultrasonic cleaning
Is there a situation when you would not use that?
Why you are so fixed on particularly "PVB 16 Varnish". It's just a conformal coating made by so-so Polish manufacturer. Is it a good idea to use conformal coating when PCB can be exposed to harsh conditions.QuotePCBa facilitates offer PCB ultrasonic cleaningMost likely it will be cleaning without ultrasonic.QuoteIs there a situation when you would not use that?Depends on PCB. If there are a lot of switches or connectors or whatever what should not be exposed to it, then conformal coating becomes troublesome. Also generally you cannot wash switches.
Ok, what could be a problem with relays or so?