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[old shrimper]

hi guys
i just had a mishap i was trying my tug with the deck just sitting on, not sealed up and got a splash of water on my RX ( SPLUTTER  ] ALL OVER )
what is a good method of waterproofing the electronic
put the RX in a balloon[

way do i get all those size poop things  when i put a smiley face in god its annoying

[nemesis]

Hi, this is an old thread, what we used in the multi days were condoms (new, of course). nemesis

[Martin (Admin)]

 Party balloons are good but not always easy to fit.

As Nemesis says, try using... "other" types of balloon!... " Something for the weekend sir?!" as they
used to say in old British Black and White films.

Wash all the coating and lubricants off them first.

Also:  http://tinyurl.com/ol93gl2

[F4TCT]

I had this issue with my wyeforce.


Basically the escs were installed in the opening under where the superstructure was and I had great difficulty in sealing the superstructure to the deck whilst making it removable.


In the end, i simply made some plasticard covers which sit over the escs and deflects the water down into the hull. Problem solved.


Would do it very differently if i was to build another wyeforce.


Dan

[malcolmfrary]

Things that can be done are
1 Mount the RX so that the holes face downwards water doesn't usually run uphill
2 If a balloon is used, the neck should also face down, same reason, but if any water does get in, it then has a way out
3 Deflection covers work in washing machines, no reason why they should not also work in a model boat
4 Then there's the various waterproofing compounds that can be applied to keep the water and wire sepatate

[Shipmate60]

Cling film over the superstructure combing can keep out water splashes.


Bob

[essex2visuvesi]

Just remember tho when you "bag" the electronics you are cutting off the airflow so some items may run hotter

[Snowwolflair]

Depends how far you want to go.
Maplin and others do waterproof boxes with rubber gaskets and you can feed out the cables using silicone rubber and waterproof plugs and sockets (AMP Superseal connectors are fantastic). Put your battery and RX in the gasket box(s).
for servos I fill the electronics compartment solid with silicone rubber and the gearbox full of Silicone grease.  For good measure you can then dip the entire servo in "Liquid Tape" and you have a completely waterproof servo to a significant depth.  It makes an interesting alternative to using WTCs in subs, the entire radio can be in a free flooding hull (and easy to get at)

[essex2visuvesi]

We use that stuff regularly at the workshop on tractor electrics, never thought of coating servos with it!

[Snowwolflair]

You need to fill the interior if the unit is submerged but to resist splash water coating it would do.

[old shrimper]

well the plasti dip / liquid tape idea sounds good
any down side to it ?
i guess once you have plugged your RX in to the servo and esc and you spray it  they're there for ever ?
covering up the little led or set up push buttons

[Snowwolflair]

Its a function of budget.  when I was young ( a poor student) I had one tx one Rx and two servos and they got moved regularly from boat to boat.  Nowadats the £13 McGregor servo in 1976 is replaced by the £10 HiTech servo ( at least something in this world is getting cheapr) and I buy an Rx and servos for each model. On this basis Im less concerned about sealing up electronics in a model, not that I have to all my models have watertight hatches

[Martin (Admin)]

Anther option, I used to open up the Rx and drip candle wax over the circuit board.
 Advantage is, it can be easily removed.

[Snowwolflair]

Martin, good you got away with that, the candle wax can act like a dialectric (engineer speak) and stop the radio tuning properly.  Its always better to surround an Rx than fill it.

[GAZOU]

 
Martin:
the candle is less effective than condoms  
 

[essex2visuvesi]

Martin:
the candle is less effective than condoms

And more painful 

[Snowwolflair]

And more painful 

We will have Nun of that here please

[Netleyned]

The Chinese used wax to stop the tuning slugs
moving in the coils of the old cheap tranny radios
If they had not done that the sensitivity would have suffered.
Bit like they con things

Ned

[Snowwolflair]

The Chinese used wax to stop the tuning slugs
moving in the coils of the old cheap tranny radios
If they had not done that the sensitivity would have suffered.
Bit like they con things

Ned

Yes wax on coils is fine as its not a magnetic effect, dialectric is a charge effect that affects the capacitors of the tuning circuit. The effect gets worse the higher the frequency, at 40Mhz we are at eighty times higher frequency than these old trannies.

[triumphjon]

i often place my rxs and 4cell rx power supply inside of baloons with a small cable tie around the neck , servo often have a smear of silicone sealant rubbed around the joins in there cases  jon

[w3bby]

I use CRC 2-26 on the electrics before use and also if they happen to get wet (even though I use a waterproof radio box). Open the electrics and use CRC 2-26 to disperse the existing water and protect against future drips and drops.