How To Protect Electrical Connections From Corrosion Service Panel
- #1
Howdy Guys
My recently purchase Cobra 850 has a fair few open connection blocks in various compartments.
She is now wintering in a yard on the Welsh declension where I'k relying on adept ventilation for things to stay relatively dry.
Should I be spraying these connexion blocks and cable connections with something like WD40 Silicon Spray to go along the clammy out?
Thank you
Pete
(Ps. I'thou used to dealing with the conditions of the relatively dry Med, non wet Wales)
- #two
WD40 certainly won't crusade any harm, but don't expect 100% protection. The best protection confronting corrosion of electric components, in my experience, is to keep them disconnected equally long equally y'all possibly tin can - simply power them but when being used. I solved this way my persistent problem with the anchor winch by simply moving the solenoid from the body of the winch right to the battery. Works magic 
.
- #3
The electric current PBO has a proficient article from Dave Drupe on the best manner to protect wiring from corrosion. There seem to be no simple solutions.
- #4
Plum
Well-known member
Hi Guys
My recently purchase Cobra 850 has a off-white few open up connection blocks in diverse compartments.
She is at present wintering in a chiliad on the Welsh coast where I'm relying on good ventilation for things to stay relatively dry out.
Should I be spraying these connection blocks and cable connections with something like WD40 Silicon Spray to proceed the damp out?Thanks
Pete
(Ps. I'g used to dealing with the conditions of the relatively dry Med, non wet Wales)
I have been spraying WD40 (non silicon) on electrical conections, engines, shaft couplings, etc for decades and it certainly works every bit a corrosion protection and has not harmed anything. Spray once or twice per year.
World wide web.solocoastalsailing.co.britain
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- #5
Vaseline works well, and is widely used for protecting electrical connections. I often use a smear of it when reassembling electric connections. Cheap as chips too.
- #vi
- #vii
VicS
Well-known member
- Joined
- 13 Jul 2002
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- 46,785
Hello Guys
My recently buy Cobra 850 has a fair few open up connection blocks in various compartments.
She is now wintering in a thousand on the Welsh coast where I'grand relying on practiced ventilation for things to stay relatively dry.
Should I be spraying these connection blocks and cable connections with something similar WD40 Silicon Spray to keep the damp out?Thank you
Pete
(Ps. I'm used to dealing with the conditions of the relatively dry out Med, not wet Wales)
Are you asking specifically about WD40 Silicone spray or nigh the ordinary WD40 Multipurpose spray
Many people prefer to keep silicones manner from their boats .
ACF50 is oftentimes highly recommended, Information technology is a similar production to ordinary WD40
Contralube 770 Gel is highly recommended for electric contacts by those who take used it ....... but expensive and not so readily available.
- #8
- #9
savageseadog
Well-known fellow member
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- 19 Jun 2005
- Messages
- 23,000
Silicon grease from a tube. Have connections autonomously, grease and put back together.
- #10
lw395
Well-known member
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- 16 May 2007
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- 42,084
Slathering lubricant everywhere tends to concenter dirt and get on other things in the locker.
We're using boxes like this:
https://world wide web.toolstation.com/shop/p30645
which keeps the electrolube in and water out.
It also allows the connections to be protected from strain and damage.
Yous can likewise make holes in them to mount sockets, voltmeters, switches...
For pick of what to spray with, I prefer a lighter silicone based product which doesn't go out the surface sticky or oily to the touch. Oil retains dirt. Dirt and so retains water and table salt, promoting corrosion.
- #11
- #12
savageseadog
Well-known member
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- 19 Jun 2005
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Slathering lubricant everywhere tends to attract clay and go on other things in the locker.
We're using boxes like this:
https://world wide web.toolstation.com/shop/p30645
which keeps the electrolube in and water out.
It also allows the connections to be protected from strain and damage.You lot can also make holes in them to mountain sockets, voltmeters, switches...
For option of what to spray with, I adopt a lighter silicone based product which doesn't exit the surface glutinous or oily to the bear on. Oil retains dirt. Clay then retains water and table salt, promoting corrosion.
Junction boxes are great and actually all boats should use them on all the electrics, that would likewise utilise to the fuse/breaker panels besides. The reality is that information technology'due south near impossible to retro fit them without rewiring.
- #thirteen
I would be interested to know why?
- #14
I am quietly replacing all the connection blocks on the boat with decent spade connectors, with heat shrink, covered female connectors and a skillful dose of WD40. Saves a huge corporeality of faffing well-nigh with screw drivers and, IMHO, gives a far more secure connection.
The major rewire is next winter. Final winter I removed all the wire that was not continued to anything - about 300m in all!
- #15
I tin answer that from experience. Silicones inhibit the cure of many paints and sealants and are very difficult to remove. I believe that many instances of Sikaflex failure to cure, regularly reported here, is because the Sikaflex replaced a silicone sealant that was previously used. Pigment films applied over silicone spray can be guaranteed to chip off, usually with a slimy surface below. I believe that it has a similar effect on polyester and epoxy cure.
Apart from all that, RTV silicones take only moderate adhesion and strength. There are engineered silicone systems that work well, my windows are bedded with one, just they were baked for 24 hours after priming.
- #16
I am quietly replacing all the connection blocks on the boat with decent spade connectors, with oestrus shrink, covered female connectors and a skilful dose of WD40. Saves a huge amount of faffing near with screw drivers and, IMHO, gives a far more secure connexion.
The major rewire is adjacent winter. Concluding winter I removed all the wire that was not continued to anything - about 300m in all!
Dave Berry's article describes the method used in armed services applications. It involves soldered joints, epoxy coating and double oestrus shrink earlier the epoxy cures. Apparently good for years submerged.
- #17
I thought silicone grease was an insulator not a conductor. That's why I was surprised to read that Icom recommend a smear of silicone grease on the charging contacts of their handhelds. Evidently the silicon grease prevents electrolytic corrosion, and the leap loading of the contacts is sufficient to brand the connection despite the grease.
Vaseline on the other hand is an excellent conductor. A spray of Boeshield T9 every half-dozen months helps keep them dry.
- #18
The reason existence that when sprayed, it pervades the temper within the boat, polluting surfaces which you will and so accept corking difficulty varnishing, in whatever time to come interior renovation projects.
- #19
savageseadog
Well-known fellow member
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Nigh greases are insulators. It doesn't finish electric contact being made though. I could say that the contacts never really affect an atomic level. Silicon grease is improve than Vaseline which tends to dry out.
- #20
I tend to use dielectric grease where needed although information technology's all-time to keep connections abroad from damp area where practically possible.
Source: https://forums.ybw.com/index.php?threads/protecting-electrical-connections-from-corrosion.511021/
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