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Old 10-23-2009, 09:03 AM   #11
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Join Date: Sep 2007
Posts: 3,260
Originally Posted by KyDan View Post
We had a boat for over 14 years.
Every time we went to the lake to launch the boat our trailer
was dunked in the water.
There was no way to keep the tail lights and side marker lights
I originally tried Vaseline petroleum jelly on the sockets but it
reacted with the brass base on the bulbs and turned them black.
So I cleaned them and then began putting a large finger full
of silicone grease in each socket before inserting the bulbs.
That worked wonderfully.
Once I'd done that, I never had another failure due to socket
In fact, I often forgot to unplug the trailer before dunking and still
did not break or burn out bulbs.

It was DOW silicone O ring grease but I don't know where to tell
you to go buy it. I just know it worked and I still have about half
a tube so I'm good for life!
I also use it in my upward pointing flag pole spot light.
Kydan, what color is it? we use O ring grease at work on some of our pumps. I may be able to locate It. Is there a number on the tub?

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Old 10-23-2009, 10:27 AM   #12
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Join Date: Mar 2008
Location: Louisville, KY
Posts: 5,644
It is DOW corning 111.
Green tube.
Any type silicone grease would be great as it repels water and is
not affected much by temperature and won't react with brass or
metal contacts.

Happy Camping!

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Old 10-23-2009, 12:16 PM   #13
SandPiper 345 QB
Join Date: Jul 2009
Location: Easton, MD
Posts: 24
I use white lithium grease on my bulbs and wheel lugs anything that could rust I still have no problems getting the lug nuts off the boat trailer or bulbs blowing.
2009 Sand Piper 345QB
2004 2500 Dodge quad cab
2 kids 2 dogs 1 wife
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Old 10-23-2009, 01:32 PM   #14
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Join Date: Nov 2008
Location: Winston-Salem, NC
Posts: 2,381
You can use any "di-electric" grease. This means it won't conduct electricity. You don't want the grease shorting your contacts. Some of the best stuff is "spark plug boot" grease, available at auto parts stores.

2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic

2008 Work and Play 18LT
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