Electrical Connectors and water?

[Mike Cork]

Alright, what's the best electrical connector/plug spray to help prevent corrosion and possible slow down moister intrusion?

My boat is getting older and connectors under the dash are starting to have problems in the deluge of rain we've been having. I know there are spays out there that a person can use to clean and protect them plugs and connectors.

What's everyones experience?

[geneinnc]

Mike, I'm not sure if you are trying to protect the gages or the connectors? I'm having the same issues due to age. I'm hitting one gage at the time and replacing wire and connectors. I bought some crimp style butt connectors  that are housed in heat shrink. It's as easy as crimping it on the new wire then putting the heat gun to the connectors. It makes a waterproof joint.

As for the gages, there used to be a gel you could put on the back of the gage. It's a while and I think I used ShoeGoo but I'm not 100% sure. I'll see if I still have any and let you know. Whatever you try apply it on a piece of metal and see if it can be pulled off easily. Some of that stuff sets up so hard you have to cut it off.....not good!

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[Mike Cork]

Those are things I need to work as well but I'm looking to protect a connector/plug. I have a control panel that has 10 wires coming out of it and merge in a male plug. This goes into a female plug and scatters to the wind under the dash. The last trip out my control panel wouldn't come on and when I wiggled the plug it worked. I can't find any loose wires so I'm hoping water just got in the plug...

I know there are electrical system sprays we used to use on aircraft, figured there was stuff in the civilian market as well...

[WTodd]

Dielectric grease is the best stuff to protect electrical connections but I don't think it comes in spray


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[Princeton_Man]

Dielectric grease is the best stuff to protect electrical connections but I don't think it comes in spray


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x2 

Dielectric grease (aka silicone grease) is the absolute best, bar none. I've used dielectric grease for all kinds of electrical connections and RF/antenna connections in vehicles for decades. I've also sprayed silicone spray on the circuit boards of radios, both new and repaired, used on farm and recreational vehicles. While the spray isn't as good, it helps prevent corrosion and water damage. Every electrical and electronic plug on my boat is packed with silicone grease as well trailer connectors and plugs.

[BassmanRudy]

I'll find out what we used for microsoldering tomorrow but did some searching and found what seems to be a great and cheap alternative at Academy! Stats say it can be used on marine electronics and lasts about 6 months outdoors. Get the red one not the green one(which is also sold at academy) as that one isn't for wiring.

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[Oldfart9999]

I haven't tried the spray Rudy showed but of everything I have tried Dielectric grease really works great, just don't overdo the amount, a little spread works very well. I know it works great in high voltage ignition systems from early days playing with small block chevys.
Rodney