[time-nuts] wwvb weak on east coast especially when the pre-amps under wa...

[Attila Kinali]

On Mon, 14 May 2012 19:43:47 -0600
Tom Knox <actast at hotmail.com> wrote:

> What type of coating do you recommend? What is the downside of coating all electronics?

As i wrote before, we usually use "Plastik 70" and "Urethan 71" for the
stuff that does not need high specs. For those that are under water and/or
more aggresive stuff (like body fluids) we use parylene.

The down side is that it costs money (it needs a manual step) and it makes
reworks more difficult as you have to ensure that after the rework the
coating is made watertight again (which isn't as easy as it looks).

Oh.. and connectors are really a pain with any coating. Either you
coat them as well and lose the connectivity or you have a point where
water can creep under the coating.

			Attila Kinali

-- 
The trouble with you, Shev, is you don't say anything until you've saved
up a whole truckload of damned heavy brick arguments and then you dump
them all out and never look at the bleeding body mangled beneath the heap
		-- Tirin, The Dispossessed, U. Le Guin