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View Full Version : Waterproofing a solenoid - any suggestions and advice?


Nick
Jun 30, 2008, 12:51 PM
Hi
I need to use a solenoid in a damp environment and wondered if anyone
had advice on how I could waterproof the solenoid. I'd considered
polymorph to encase the main body but I'm not sure how to get a seal
around the plunger, or encasing it entirely in something with a side
that can flex when actuated but I don't know what compound to use for
that. I should be able to avoid getting the solenoid splashed and
soaked directly, but getting sprayed is possible, and the air would
probably be high humidity.

Any ideas and advice welcome!

Cheers
Nick

John Mianowski
Jun 30, 2008, 08:42 PM
On Jun 30, 11:51 am, Nick <n...@ioncube.com> wrote:
> Hi
> I need to use a solenoid in a damp environment and wondered if anyone
> had advice on how I could waterproof the solenoid. I'd considered
> polymorph to encase the main body but I'm not sure how to get a seal
> around the plunger, or encasing it entirely in something with a side
> that can flex when actuated but I don't know what compound to use for
> that. I should be able to avoid getting the solenoid splashed and
> soaked directly, but getting sprayed is possible, and the air would
> probably be high humidity.
>
> Any ideas and advice welcome!
>
> Cheers
> Nick

I think I'd just start with a sealed relay. IP-x4 or better?

JM

Slightly_floored via ModelGeeks.com
Jul 01, 2008, 05:29 AM
I sail combat ships that get sunk, so damp can be a little bit of a problem.
To protect all my electronics, including servos and reciever from damage, I
use a dielectric silicone spray called Chemsearch nc-123. Haven't lost a
component to water damage since I started using it.
There are many articles in discussions on waterproofing on the various r/c
combat warship sites.
Try www [dot] rcnavalcombat [dot] com....

--
He turned in front of me and I ran him over...what do you mean "RAM"

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Jim
Jul 03, 2008, 07:01 PM
where do you get the chemsearch. I can't find any reference to it in the
USA.

"Slightly_floored via ModelGeeks.com" <u44576@uwe> wrote in message
news:867d71d461e47@uwe...
>I sail combat ships that get sunk, so damp can be a little bit of a
>problem.
> To protect all my electronics, including servos and reciever from damage,
> I
> use a dielectric silicone spray called Chemsearch nc-123. Haven't lost a
> component to water damage since I started using it.
> There are many articles in discussions on waterproofing on the various r/c
> combat warship sites.
> Try www [dot] rcnavalcombat [dot] com....
>
> --
> He turned in front of me and I ran him over...what do you mean "RAM"
>
> Message posted via ModelGeeks.com
> http://www.modelgeeks.com/Uwe/Forums.aspx/water-models/200807/1
>

John
Jul 03, 2008, 11:06 PM
I think a similar product in the USA is called "Corrosion X"


--
John
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Slightly_floored via ModelGeeks.com
Jul 04, 2008, 03:27 AM
Corrosion X might or might not be similar, the spray I use is expressly
produced for protecting electrical components, in the aviation and marine
fields. It's a product of the NCH corporation, manufactured by Chemsearch
Australia. There must be similar sprays available.

--
He turned in front of me and I ran him over...what do you mean "RAM"

Message posted via http://www.modelgeeks.com

Jim
Jul 04, 2008, 05:31 PM
Yep. But even it is hard to find.

"John" <John.3c0ca7@no-mx.forums.yourdomain.com.au> wrote in message
news:John.3c0ca7@no-mx.forums.yourdomain.com.au...
>
> I think a similar product in the USA is called "Corrosion X"
>
>
> --
> John
> ------------------------------------------------------------------------
> John's Profile: http://www.modelpowerboat.com/forum/member.php?userid=2
> View this thread: http://www.modelpowerboat.com/forum/showthread.php?t=703
>

Nick
Jul 10, 2008, 04:16 AM
Thanks for the replies. Farnell in the UK carry a number of RTV
sealant products, an there's an instructive video on YT about
waterproofing a servo with RTV gunk. I'm now considering a stepper
rather than solenoid for the application I'm working on, and there are
high IP rated steppers available, but sealing with RTV and an o-ring
would most likely do the job with a regular servo.

lailaigogo
Aug 11, 2008, 08:46 AM
When guard stopped the cart, they initiate roach, various knives and
cutlery 'wow Gold' (http://www.ugamegold.com/), a hatchet, a box of
condoms and sex toys, as healthy as a box of chocolates and a tract
doughnut. The bet of the handcart had been equipped with a temporary
bed.


--
lailaigogo


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