Maytech remote required modifications before use

Hi.

Yes. Your remote looks better then mine did. But, the water will find it’s way into the circuit board a round your plugs and through the switch. And your screen might be poorly coated and corrode out quickly.

You don’t have to remove any screw to remove the screen. It just slides in. So, you can just slide it out carefully.

My waterproofing technique is one I learned years ago from the R/C car, boat, plane guys. And now days the drone guys, and eskate community. This tried and proven method to long term waterproof protection is what I have tried to describe.

The conformal coating dries to a hard waterproof coating. This alone will make the circuit board waterproof. But, if the coating chips or cracks then the barrier has failed.

The corrosionX used alone on a circuit board will also make the board waterproof. But, it never dries. It works by coating the board with a oily film that displaces the water. So, with time this coating will wear or wash off and no longer provide the protection.

So, the best course of action is to use both layers of protection. Obviously you can’t use the conformal coating over the corrosionX because is wouldn’t stick. So, this is the reason for the order. If the conformal coating cracks or chips the corrosionX will fill the imperfections and prevent you from having a failure. It’s a good idea to reapply the corrosionX from time to time and to areas that are corrosion prone, or cannot be coated with conformal coating like switches, buttons, and metal parts like springs.

The silicone dielectric grease I use for the button after the corrosionX because it is very thick and stays in place quite well.

This is an outline of the technique I have been using for years. I has served me well.

:call_me_hand:

The coating on your “throttle trigger board” is terrible. That would have died the first time you got it wet. Make sure to coat that nice and thick.

Does it make sense to cover the entire circuit board with silicone? Now only the contacts are protected.

Yes. I always coat the whole board.

okay, so I will buy silicone modified conformal coating for only 35,-€…

but I’ll use the belt and the braces …

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Found this useful tutorial on how to waterproof drone electronics to paraphrase @Flightjunkie :

I have the Maytech V2. Will open it soon and follow the same steps. Will post some pics. Thx !

Also, I will add an overvoltage / overcurrent protection to the main board. It also allows for temperature protection :

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Maytech water-proof remote is still my best option.
No other remote is good as this one.
I bought one in March 2019, it still works well till now.

Hi.

Thanks for sharing your experience.

Did you do any modifications? Have you opened it up and inspected it? Their quality control it terrible. And yes, I’m talking about their new remote. The V2.

And if you don’t mind me asking. Are you using it in fresh water or salt water?

:call_me_hand:

Hi @Flightjunkie,

Seems like I cant find any seller to buy the MG chemicals silicon conformal coating to be delivered in Belgium. Any alternative to this one ?

I found another product of MG, seems the same, what do you think ?

https://www.amazon.fr/MG-Chemicals-Tropicalisation-Silicone-Modifié/dp/B008O9YGQI

Ok for the interested ones : this is exactly the same product in aerosol. Still the MG422B. Here is a list of other silicone conformal coatings :

Types of Silicone Conformal Coating

  • Humiseal 1C49
  • HumiSeal 1C49LV
  • HumiSeal 1C51
  • HumiSeal 1C55
  • Dow Corning 1-2577
  • Dow Corning 3-1753
  • Dow Corning 3-1765
  • Dow Corning 3-1744
  • Dow Corning 3-1953
  • Dow Corning 3-1965
  • Dow Corning 3-1944
  • MG Chemicals 422B
  • Peters DSL 1705 FLZ
  • Peters DSL 1706 FLZ
  • Electrolube SCC3
  • Electrolube SCC4
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I bought it in Poland for a good price and incl. delivering to germany for 22,50€

Praud Sp. z o.o.,
ul. Wałbrzyska 11 lok. 167

02-739 Warszawa
Polska

+48 881 375 742

leszek@praud.pl ,

www.praud.pl

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and I coated my electronic two times.
I am a little bit scaryed to put it together…
I don`t want to damage the monitor

You’ll be fine. Just don’t force it. Treat it like glass. Also, you do not need to use the foam part behind the screen if your remote had that. The plastic case holds the screen fine without that filler.

Yes. The spray is the same. You can even spray it into the cap and brush is on.

:call_me_hand:

Ok thanks @Subusi @Flightjunkie ! I am about to receive the overvoltage protection board and will open the remote as soon as I get the conformal coating & board :slight_smile:

I did it.

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Ahah, you got me lol. Why do you bother coating and waterproofing it if it’s still to put it in a condom ? :rofl:

By the way, I got the overvoltage protection board. It’s soooo tiny I thought they forgot to put it in my order lol. It’s actually 12,5 x 10 mm. Will have no problem to fit in one corner of the remote.

Still waiting the conformal coating…

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