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Waterproofing ESCs
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plasticbaldy View Drop Down
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Posts: 49 		  Quote plasticbaldy Quote  Post ReplyReply Direct Link To This Post Topic: Waterproofing ESCs
    Posted: 16/Aug/2012 at 10:27pm
Where in Australia do I buy a liquid plastic (urethane ?) for dipping my boat ESC to totally isolate it from H2O ? And what's it called ? WTF does everyone else do ?
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plasticbaldy View Drop Down
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Posts: 49 		  Quote plasticbaldy Quote  Post ReplyReply Direct Link To This Post Posted: 16/Aug/2012 at 10:29pm
Should have clicked 'Email notify of replies'
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Dbtchrman View Drop Down
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Posts: 3 		  Quote Dbtchrman Quote  Post ReplyReply Direct Link To This Post Posted: 19/Aug/2012 at 11:40am
I wouldn't use Liquid Plastic or Urethane. If you ever have to do any kind of service/ e or maintenance you will live to regrate it! the best material to water proof is a marine wax spray that you can spray and let it set! then do it again and again! and if you ever have to work on your electronics a heat gun or hair dryer will literally clear the wax and you will be ready to go!

Go to your nearest Marine supply! or access it on line and get your self a good of water proofing wax and in that way you will have the best of both worlds!
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trevpez View Drop Down
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Posts: 290 		  Quote trevpez Quote  Post ReplyReply Direct Link To This Post Posted: 21/Aug/2012 at 4:53pm
Try using silastic on either end on heatshrink tube.Because they use an alloy heat sink with brass fittings,I always use a very large syringe full of" salt away" to flush ESC then follow up with a BIG rinse of WD40 followed by a good squirt of compressed air and more WD40.My ESC's are 2years old and used in salt water,but you must do it after every use with out fail!!!!!

Edited by trevpez - 21/Aug/2012 at 4:55pm
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plasticbaldy View Drop Down
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Posts: 49 		  Quote plasticbaldy Quote  Post ReplyReply Direct Link To This Post Posted: 21/Aug/2012 at 5:04pm
Originally posted by trevpez

Try using silastic on either end on heatshrink tube.Because they use an alloy heat sink with brass fittings,I always use a very large syringe full of" salt away" to flush ESC then follow up with a BIG rinse of WD40 followed by a good squirt of compressed air and more WD40.My ESC's are 2years old and used in salt water,but you must do it after every use with out fail!!!!!


Great idea Trev. The best ideas are only obvious AFTER I've been shown. Duuuuuuuh ! Thank you.
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trevpez View Drop Down
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Posts: 290 		  Quote trevpez Quote  Post ReplyReply Direct Link To This Post Posted: 21/Aug/2012 at 6:04pm
Yeh,just remember electolysis is created by the use of alloy and brass in salt water and will dissolve your ESC/motor if you don't do it every use.
DON't leave them over night.Google 'saltaway' ,I found it in a boat shop in Maitland NSW,it dilutes at 500:1 .It is a fantastic product,nutralising salt,a little dear[$30/ liter]but it lasts forever and is cheaper than replacing ESC/motors on a regular basis
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Keeth View Drop Down
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Posts: 667 		  Quote Keeth Quote  Post ReplyReply Direct Link To This Post Posted: 21/Aug/2012 at 8:54pm
I'm playing with EVA encapsulation atm... It's a thin film you buy in rolls up to a meter wide.. I'm using it for encapsulating solar panels behind glass... You just lay it on and hit it with a heat gun and it melts onto the panels and glass giving a water/air tight seal if done properly... I'm sure there will be uses for it in our hobby... Definitely waterproofing electronics and maybe strengthening foam...

There are a few vids on youtube about it...
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plasticbaldy View Drop Down
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Posts: 49 		  Quote plasticbaldy Quote  Post ReplyReply Direct Link To This Post Posted: 17/Sep/2012 at 11:16pm
Originally posted by plasticbaldy

[QUOTE=trevpez] Try using silastic on either end on heatshrink tube.Because they use an alloy heat sink with brass fittings,I always use a very large syringe full of" salt away" to flush ESC then follow up with a BIG rinse of WD40 followed by a good squirt of compressed air and more WD40.My ESC's are 2years old and used in salt water,but you must do it after every use with out fail!!!!!


Lucky me. Saltwater is 300 km away. I'd prefer to ski in it though.
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plasticbaldy View Drop Down
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Posts: 49 		  Quote plasticbaldy Quote  Post ReplyReply Direct Link To This Post Posted: 17/Sep/2012 at 11:32pm
OK. After more research I've discovered that some guys in the US use nothing more than ACF-50. Gooogle it - Military stuff. I found it for $19 for a 12oz aerosol can in Oz from (email) ; dan.masoch@blockchemical.com
plus only $8 delivery.
I might try drenching my ESC in it then doubling up by using trevpez heat shrink tip in the posting on this page. I'll also open my RX case and soak the gubbins in there too.
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swervyn View Drop Down
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Posts: 80 		  Quote swervyn Quote  Post ReplyReply Direct Link To This Post Posted: 13/Oct/2012 at 4:58pm
Heat shrink esc and fill the open ends with 5 minute araldite epoxy, works for me! (tried silicone once & didnt work for me )
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