Yes I believe it does, but the thinking is that it is a tiny hole,
and so not much more air than might find its way inside in any case.
If your box has an air tight seal everywhere, you will likely get
away with the desiccant pack to dispose of the moisture that is in
the air that you seal in with it. At work, that was done with
boxes that would be submerged (by definition an air tight seal on
those boxes, rubber o-rings and grease, seated cleanly), but the
desiccant would always be replaced if the box was ever opened.
If a small leak of moist air finds it way around a connector for
example, you will find yourself with a pile of desiccant mush in one
corner of the box eventually. We should all join Bill B. in Arizona
to solve this problem, hi.
best wishes,
Nick
At 16:28 30-10-16, Mark Durenberger wrote:
The other concern about weep holes may be unfounded: What if the
boxes are subjected to a moist/foggy environment? Does that ambient
moisture get inside the box?
Regards,
Mark Durenberger
-----Original Message----- From: Nick Hall-Patch
Sent: Sunday, October 30, 2016 10:31 AM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions)
One thing that will interest me is whether you get condensation
inside those sealed boxes Mark and Guy. Over the years, a number
of radio amateurs have found they needed to add bleed holes on the
underside of the box to allow condensation to escape, at least for
long term deployment.
I believe the problem is that moist air can find its way into the
box, even if actual moisture can't, and then it gets cooler and the
moisture condenses and has nowhere to go.
It's a battle!
I've sealed up regular plastic boxes over the years with a runny
silicone compound used for sealing windshields (auto supply stores
have it, Permatex is one of the brands), figuring I won't be taking
it apart except in direst circumstances. Then I have had to add a
bleed hole anyway.
best wishes,
Nick
At 14:04 30-10-16, [email protected] wrote:
Guy, I ordered a bunch of these and have been getting e-mails in
bad English about running into customs problems, and so sorry, and
if I send my PayPal info he'll refund the money etc.. So it might
have become a bad bet but tnx anyway. On the other hand the boxes
may eventually arrive and I'll be the first to apologize.
Meanwhile if someone IS looking for small waterproof boxes, try this:
https://www.amazon.com/gp/product/B00E0H7HFK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Mine arrived in the usual two days and are very well-built.
I'm halfway through a complete how-to story on waterproofing
antenna terminations and hope to have this published in a week or two.
Cheers!
Mark Durenberger
-----Original Message----- From: Guy Atkins
Last year I came upon this weatherproof model and have found the
quality to be very impressive for the price:
http://www.ebay.com/itm/1x-Waterproof-Plastic-Enclosure-Electronic-Project-Box-Instrument-Case-DIY-Hot-/271598155425
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Nick Hall-Patch
Victoria, BC
Canada
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Nick Hall-Patch
Victoria, BC
Canada
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Opinions expressed in messages on this mailing list are those of the original
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