protecting electronics from marine water

Place for all of the tips, hints, and facts around the electrical and electronic stuff found around Trailer Sailers, Trailers, and associated vehicles.
Post Reply
INMA
Admiral
Posts: 5850
Joined: Nov 5th, '06, 13:07

protecting electronics from marine water

Post by INMA » Mar 13th, '13, 21:00

I know the best way to protect electronics is to keep it out of the water.

Unfortunately that can't always be achieved.

I am looking at whether its worth spraying some product that provides some resistance from salt water on things like the circuit board in interior lights or the radio.

My cheap FM radio lasted about as long as the original expensive FM radio. I reused the box from the expensive marine radio. So I will watch for a cheap radio and was wondering whether anyone knew of a spray that might protect the circuit boards.

Cost is not a big issue if there is something out there that can be used on circuit boards and perhaps other electrics.
RL24 Mk4 cruiser Mariner 5 2 stroke

A bad day in the Whitsundays is better than a good day at work. Unless you work in the Whitsundays.

Cruiser
Able Skipper
Posts: 629
Joined: Aug 30th, '09, 18:09
Location: Brisbane

Re: protecting electronics from marine water

Post by Cruiser » Mar 13th, '13, 23:49

Hi INMA,
Don't know if this is much use to you but I have been using this "Electronic Cleaning Solvent", I purchased from Jaycar, on the boat and around the house for the last 12 months. I use to use CRC type sprays but find this is a lot cleaner and does not leave all the oily crud on things.
Servisol Electronic Cleaning Solvent (resize).jpg
Servisol Electronic Cleaning Solvent (resize).jpg (106.33 KiB) Viewed 1507 times
I use this solvent on a little old trany radio (it lives in the bathroom) that I cart around the house. Often the volume pot plays up and I use to give it a sqirt of CRC. I find this stuff does just as good ajob and does not leave the mess that CRC does. Actually last week the radio was playing up big time and so I took the covers off and gave the whole inside a good blast - came up sounding like new again.

The following is the MSDS but for some reason the manufacturer have been allowed to not publicly disclose the full ingredient list :?: .
http://www.electusdistribution.com.au/p ... S_2011.pdf
MacGregor 26S "Myuna"

User avatar
Tymadman
Able Skipper
Posts: 1425
Joined: Oct 3rd, '09, 15:17
Location: Capalaba

Re: protecting electronics from marine water

Post by Tymadman » Mar 13th, '13, 23:59

Circuit board lacquer (available from Jaycar) is the proper stuff to spray onto circuit boards. The circuit boards for my remotes are getting this sprayed onto them.
It can be soldered through which is one reason for using it rather than other kinds of lacquer.

In the business a protective lacquer coating is called a conformal coating.

Image
Cheers,

Neil

Crosswind
Ross 650

User avatar
zebedee
Admiral
Posts: 9904
Joined: May 9th, '07, 02:05
Location: Bayside Melbourne

Re: protecting electronics from marine water

Post by zebedee » Feb 13th, '18, 19:01

Ray on the bay was asking me about a similar problem (corrosion of the circuit tracks on an old Sumlog) by phone a few minutes ago, so here's the link to the Jaycar product for $11.50 per can.

Image
A man's boat is his Castle. The Gippsland Lakes are my moat. Castle 650 #10, Roller Coaster.

User avatar
ray on the bay
Able Skipper
Posts: 696
Joined: Dec 7th, '09, 23:31
Location: Cheltenham Vic

Re: protecting electronics from marine water

Post by ray on the bay » Feb 13th, '18, 19:35

Thanks Zeb
My old sumlog lives again after doing a patch up job bridging some corroded tra ks on the circuit board

Time to try and save those that remain
Ultimate 18S Allanah

"Water Cures All"

User avatar
az100
Able Skipper
Posts: 608
Joined: Oct 29th, '06, 02:32
Location: WA

Re: protecting electronics from marine water

Post by az100 » Feb 14th, '18, 01:20

Yes, great stuff this circuit board lacquer but if you get any of it onto any contact you might be sorry later.
So, do mask off anything that requires a clean contact area *before* hitting the spray button.

A hint,, this stuff will clog the spray nozzle if left in there so to clear it, turn the can upside down and spray your last bit of board until the spray turns clear. It then will work next time you want to use it.

Post Reply

Return to “ELECTRICKERY (Electrical and Electronic Stuff)”