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04-07-2019, 21:48
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#1
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Registered User
Join Date: May 2012
Location: Port Moody, BC
Boat: Hunter 356
Posts: 106
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Protective film for electrical connections
Looking for recommendations for an anti-corrosion spray to apply to electrical connections. I could use dielectric grease, but I’m sure there’s a spray product that’s is more robust. TIA.
__________________
If it sounds dumb in your head, it sounds even dumber out loud!
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04-07-2019, 22:42
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#2
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Marine Service Provider
Join Date: Jan 2012
Location: Thailand
Boat: Herreshoff Caribbean 50
Posts: 1,096
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Re: Protective film for electrical connections
WD40 or Vaseline/petroleum jelly
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Steve .. It was the last one that did this !
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04-07-2019, 23:22
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#3
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Registered User
Join Date: May 2011
Location: Miami Florida
Boat: Ellis Flybridge 28
Posts: 4,057
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Re: Protective film for electrical connections
CRC Heavy Duty Corrosion Inhibitor is a heavy waxy grease coating that is very effective and long lasting.
Boeshield T9 is my favorite. It dries to a waxy coating that is less messy than grease type coatings.
If I recall correctly Practical Sailor liked both of these. They also liked petroleum jelly but you had asked for sprayable products.
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Retired from Hopkins-Carter Marine Supplies
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05-07-2019, 00:05
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#4
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Registered User
Join Date: Aug 2013
Location: Florida
Boat: 2000 Searay 380 Sundancer
Posts: 1,087
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Re: Protective film for electrical connections
This Star Brite Liquid Electrical Tape is used to protect all the main power supplies / returns to both my engines.
It works great.
__________________
2000 SeaRay 380 Sundancer Mercruiser
454 MAG MPI Horizon 380hp / Westerbeke 7.0KW BCGB
many cool mods
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05-07-2019, 00:11
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#5
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Registered User
Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 4,864
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Re: Protective film for electrical connections
Lanolin spray and fish oil spray are effective and relatively cheap.
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05-07-2019, 03:32
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#6
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registered user
Join Date: Dec 2012
Location: back in West Australia
Boat: plastic production boat, suitable for deep blue water ;)
Posts: 1,091
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Re: Protective film for electrical connections
Yes, I am a Lanolin addict, but I am not using it on solder connections, circuitboards.
I am sure that all the above sprays and stuff work, but I guess if one has to re-solder..... the grease products will prevent a good solder connection?
Happy to be proven wrong.
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05-07-2019, 03:54
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#7
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Registered User
Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 4,864
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Re: Protective film for electrical connections
Quote:
Originally Posted by HankOnthewater
Yes, I am a Lanolin addict, but I am not using it on solder connections, circuitboards.
I am sure that all the above sprays and stuff work, but I guess if one has to re-solder..... the grease products will prevent a good solder connection?
Happy to be proven wrong.
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O.M.G.
You've just opened one humongous can of worms.
You've mentioned the word "solder" in the context of a connection on a boat.
Be that as it may, Lanolin has high dielectric strength and low melting point. This would make it a good choice and shouldn't pose any serious re-soldering problems although you're supposed to only crimp then there's be no need to resolder in the first place .
Silicon grease would be the worst, imo, as it can have a high melting point. Everything else in between. I haven't done an awful lot of soldering on oil coated wires, but anything hands down would have to be better than trying to solder corroded copper strands.
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05-07-2019, 05:05
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#8
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Moderator and Certifiable Refitter
Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: C.L.O.D.
Posts: 20,305
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Re: Protective film for electrical connections
Quote:
Originally Posted by Reefmagnet
O.M.G.
You've just opened one humongous can of worms.
You've mentioned the word "solder" in the context of a connection on a boat.
Be that as it may, Lanolin has high dielectric strength and low melting point. This would make it a good choice and shouldn't pose any serious re-soldering problems although you're supposed to only crimp then there's be no need to resolder in the first place .
Silicon grease would be the worst, imo, as it can have a high melting point. Everything else in between. I haven't done an awful lot of soldering on oil coated wires, but anything hands down would have to be better than trying to solder corroded copper strands.
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Presumably silicone grease.
I can't comment on soldering though silicone grease but is very easy to crimp stuff previously coated in silicone grease (like say DC4) as it is a low pressure grease so readily displaces when crimped.
Soldering corroded copper wire can be achieved by fanning out the strands and treating with a mild acid - phosphoric, citric etc. Wipe with a scotchbrite scourer, flush with water and then solder with normal electrical solder.
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All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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05-07-2019, 05:23
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#9
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Registered User
Join Date: Jul 2012
Location: New Bern, NC
Boat: Shannon 43 Ketch
Posts: 246
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Re: Protective film for electrical connections
Quote:
Originally Posted by Wotname
Presumably silicone grease.
I can't comment on soldering though silicone grease but is very easy to crimp stuff previously coated in silicone grease (like say DC4) as it is a low pressure grease so readily displaces when crimped.
Soldering corroded copper wire can be achieved by fanning out the strands and treating with a mild acid - phosphoric, citric etc. Wipe with a scotchbrite scourer, flush with water and then solder with normal electrical solder.
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Boy talk about over the top! Cut the damn bad wire to clean and get on with it.
After my 2 Trans-ATS, I've become quite the nut job about never making any connection without sticking the wire in my can of lanolin, or dielectric grease or spraying a protective film...
I bust out laughing when I saw the "OMG, can of worms" comment on solder....made me giggle silly.
All I can comment on is experience at sea. Corrosion is real no matter how you slice it, so yes prophylactic prevention is really smart at staving off this bugger of hassles down the road.
__________________
Smooth sailing and fresh warm breezes,
Tony & Lisa
sv Marite
'87 Shannon 43' Ketch
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05-07-2019, 05:44
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#10
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Moderator and Certifiable Refitter
Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: C.L.O.D.
Posts: 20,305
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Re: Protective film for electrical connections
Quote:
Originally Posted by svMarite
Boy talk about over the top! Cut the damn bad wire to clean and get on with it.
.......
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Yeah, cutting back to clean wire works great when you can do it.
When you can't - my way works
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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05-07-2019, 05:56
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#11
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Registered User
Join Date: Jan 2015
Location: Pittwater NSW Aust.
Boat: Jarkan King 40 12m
Posts: 328
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Re: Protective film for electrical connections
CRC Soft Seal; sprays on as a thin runny liquid which will wick up wires, and coat everything, dries to a flexible waxy non sticky stuff, cleans off with any petroleum type solvent.
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05-07-2019, 10:10
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#12
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Registered User
Join Date: Jan 2010
Location: Portland, Oregon, USA
Boat: 31' Cape George Cutter
Posts: 3,270
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Re: Protective film for electrical connections
Personally I avoid all things siliicone -the silicone oil residue is virtually impossible to remove and makes it very difficult for anything else to adhere. 3M Silicone Dielectric grease is specifically made for this purpose, but not on my boat...
I soldered connections where appropriate (let's not start that food fight) and coated with liquid vinyl (Liquid Lectric Tape) when I built Carina. I also wrapped each wire with electrician's tape after the vinyl set up - a mistake. Electrician's vinyl tape (the good 3M stuff) doesn't last for decades: the adhesive turns into a gooey mess. I like repair tape better these days. It is not too difficult to remove the liquid vinyl if needed (not terribly easy though).
Greg
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05-07-2019, 10:14
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#13
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Moderator Emeritus
Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,351
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Protective film for electrical connections
If you are talking circuit boards. Then you need conformal coat.
Very often conformal coating is the only difference between a marine product and a non marine one, it’s easy to conformal coat a board, it’s just painting it on.
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05-07-2019, 10:26
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#14
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Registered User
Join Date: Aug 2011
Location: Lower Chesapeake Bay Area
Boat: Bristol 27
Posts: 10,460
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Re: Protective film for electrical connections
Quote:
Originally Posted by a64pilot
If you are talking circuit boards. Then you need conformal coat.
Very often conformal costing is the only difference between a marine product and a non marine one, it’s easy to conformal coat a board, it’s just painting it on.
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Conformal coating is the worst. It may protect a circuit board but if you need to replace a component, first you have to scrap that crap off. I used to hate dealing with it
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05-07-2019, 10:29
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#15
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Registered User
Join Date: Aug 2011
Location: Lower Chesapeake Bay Area
Boat: Bristol 27
Posts: 10,460
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Re: Protective film for electrical connections
Quote:
Originally Posted by a64pilot
If you are talking circuit boards. Then you need conformal coat.
Very often conformal costing is the only difference between a marine product and a non marine one, it’s easy to conformal coat a board, it’s just painting it on.
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Conformal coating is the worst.
It may protect a circuit board but if you need to replace a component, first you have to scrap that crap off. I used to hate dealing with it
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