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I've searched on here and didn't find anything like what im about to tell you guys. Some of you may already know. I had this notion that being this stuff is in a boat....that may flip (well with my bad driving lol!) And take on water. Well this could get expensive really quick for me. So I had to have a for sure solution. So I figured out I can take each component apart and coat them with 5 minute epoxy. I've seen people use plasti-dip and a few other things but never epoxy. I mix some up and brush it over everything except the pins on the receiver. I seal it up around the base of them tho. Works on servos, esc's, and receivers. Hell, just about anything with a circuit board. The servo gears I pack with grease to keep the water out. Then the case I seal up the case with silicon whike im at it. Of course I wood excess sealer off when I put back together. I've sank my boat several times and its been under water for over 15 minutes at a time. Everything still works perfect. And guess what...the mr20p receiver that's supposed to be waterproof....I burned one up before figuring this out. Evidently they aren't too waterproof. Im gonna do another mr200 tonight and ill post pics of it.
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32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was -
Ok. Took apart a brand new mr200 and a sky bec. The bec is a little harder because it has dip switches and dials. You just have to use a small brush and be careful.
The epoxy I use
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Here's the bec and receiver coated
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20131116_183212.jpgLast edited by kfxguy; 11-16-2013, 10:14 PM.32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was -
Thanks for posting.
Did a MR200 with the Performix liquid tape stuff and had it underwater for over a week in a sunk boat that was eventually recovered. Still works. All my MR200s and servo PCBs get treated with it.Comment
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Just for future reference, and maybe to save you some money and time, all of the Spektrum MR200's are already conformal coated. They are advertised as "water-resistant" I imagine for warrantee reasons, but they are, for all intensive purposes, already water-proof... It's one of the benefits of running the Spektrum marine series... If you had one "burn up" getting it wet, then I suspect something else was wrong. I suppose it can happen, but it's a very rare occurance.
Not a bad idea for other electronics, however... or just as a double-redundancy protection I suppose.
You can also just get some silicone based conformal coating from your local electronics store.Darin E. Jordan - Renton, WA
"Self-proclaimed skill-less leader in the hobby."Comment
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Thanks. I saw that the mr200 was already coated, but very lightly. I just know my sons shockwave 26 brushless took on water one time and the receiver stopped working. Makes me feel better to do it I guess. Everything else needs it. I even do my esc's with it. This stuff is like magic lol. No idea why everything with a circuit board isn't epoxy coated. I guess maybe for repair reasons.
I much rather this way than balloons or a waterproof box. It may be a little more work, but I don't mind it as I like to have a tidy looking interior. The plasti-dip is just too messy for me, you have to mask stuff off and takes too long to dry.32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) wasComment
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I agree with you there... I hated those balloons! :)
It's not a bad idea to do what you are doing. It's just that it shouldn't be necessary with these RXs... If you had some fail due to water exposure, you should really contact Spektrum and let them know. They would want to know if things aren't being manufactured correctly, and I'm certain would work to correct the problem.
I've personally never had one fail due to water exposure, but then, most of my boats stay dry inside.Darin E. Jordan - Renton, WA
"Self-proclaimed skill-less leader in the hobby."Comment
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If you wish to use epoxy, you should use electronics grade epoxy. 3M DP270 comes to mind.Comment
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32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) wasComment
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32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) wasComment
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My son burned up a castle esc in one of his rc cars a couple months ago because he got it wet....well I bought him a replacement and did this to it....its still going. He is hard on stuff. Im going to do a couple more components in the next few days. I have some more projects im working on. Stay tuned.32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) wasComment
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You just have to watch that anything in the epoxy's don't attack or promote corrosion. A lesson learned long ago.Comment
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This stuff works good to.
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And some testing with it.
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Quick question for you guys...
Is there any advantage to using brand "x" liquid tape vs. brand "y"??
Example: Plastic Dip Liquid Tape... http://www.plastidip.com/home_solutions/Liquid_Tape - vs...
CRC Urethane Seal Coat... http://www.crcindustries.com/ei/prod....aspx?id=18411 - I can't find either in local stores.
Local Lowe's & Home Depot only have this stuff... http://www.homedepot.com/p/Gardner-B...0#.UomI4zd-gwo - Went to Gardener Bender's website & there's nothing about that product.
OP of this thread... http://forums.offshoreelectrics.com/...formal-coating - asks about Chemtronics Kon Form - I did a Google search, it's still available.
4 different products that all "claim" to be the best at protecting your electronic devices...
FYI: All are about the same price, around $7.50/can+ excluding shipping.Comment
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I use this stuff but the clear. http://www.plastidip.com/home_solutions/Liquid_Tape
And also some industrial sealer that I get from a starter and alternator rebuild and repair shop,
That I fix some stuff for.
It's by Seymour, Orange tinted sealer 89-726-1.Comment
? ONLY IF THEY WORK 
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