Incandescent bulbs in my kitchen's ceiling fan seem to sort of get corroded
in place, probably due to the moist environment. I've got electrolytic
grease for the light bulbs on my boat trailer. Any reason not to use a very
fine coating on the threads of the bulbs in the ceiling fan? I realize that
conductivity isn't the goal with these bulbs, but the stuff also serves to
block moisture, if results on the trailer are any indication.
You could try it, worse that could happen is you have to clean it out with a
cotton swab and isoproponol (or denatured alcohol).
I have never had this problem even in range hoods with standard bulbs.
There must be something more than steam at hand.
Are you saying the threads of the bulb and socket form a layer of corroded
metal which is hard to remove. Perhaps it is too late for the socket and
you should obtain a replacement from the hardware store. The materials used
for bulb bases and threads should not oxidize (corrode) appreciably but
copper or brass parts in the fixture may be suffering. It usually takes
more than just water vapor to severly corrode (all but soft iron) usually
there needs to be a contaminant like salt present (from the potato to remove
the broken base trick perhaps or from your hands). Presence of electricity
would likely accelerate corrosion caused by contaminants but not oxidation
caused only by water vapor.
Another indication that looks like corrosion is actually pitting caused by
arcing in a loose lamp fixture. Can't tell if that is what you are seeing
Describe this corrosion better and I can guess better
I've had similar problems, but with brand new bases in cheap light
fixtures made in China. I'm not sure what causes the problem, but in a
brand new fixture, new bulbs are difficult to install, hard to tighten
sufficiently, and difficult to remove. What I've done in the past is
clean the fixture with WD-40 and wipe the bulb base with a little as
well. Then they seem to install easily and when burned out, remove
easily as well.
Next time I'll go out to the garage and get my tube of electrolytic
grease after I clean the fixture. I'm sure this will solve such
problems for a longer period of time.
(Remove the Primes before e-mailing me)
There is a silicon grease which is sold
for that purpose. I bought it at
the local Menards (Chicago suburb). It
comes in a small orange plastic
can. I know that with high wattage
lamps, they are sometimes hard to
remove after years of heat. I actually
used this stuff on theatre lighting
fixtures to lube the adjustment threads
..... it seemed to work. This is
a much hotter environment than the
typical 150 lamp. These fixtures
are as high as 1000 watts.
Tony Hwang wrote:
Enormous fan, actually. I suspect the problem is simply cheap crap fixtures
made in China. Since there are no fixtures made here any more, you will
eventually own a Chinese fixture and experience the same problem.
I have been lubricating all my installed light bulb threads for over
20 years. I've tried wd-40, but it doesn't last. Crisco shortening
is great and lasts as long as the bulb. Just apply it thinly and wipe
it all off. The only problem is that it is not handy.
A good workable substitute for crisco that is always available is ear
wax. Or for some of you, oily hair. I won't continue but you get
You can try it. But what is electrolytic grease?
I've heard of electrolytic aluminum and
electrolytic zink, but grease? Sorry I just had
to say that.
What you really want is silicone grease and all
you need is about a match head sized piece for
each bulb. Just wipe it on the screw base, don't
forget the center and wipe off. Probably WD40
(another poster) will do just as good a job.
On Tue, 14 Jun 2005 00:50:56 GMT, "George E. Cawthon"
After thinking about it overnight, it may be that what I'm doing with
the WD-40 is just cleaning a couple of dirty sets of threads, thereby
making them work the way they are supposed to. But a little
lubrication, of the appropriate sort (I wouldn't recommend bacon
grease!:~) is a good idea as well.
(Remove the Primes before e-mailing me)
I have had the same problem. Whats the deal with these ceiling fan
lights. Dont they make the sockets the right size or what. Ours got
so bad we junked the whole thing after several bulbs broke off in my
On Mon, 13 Jun 2005 20:49:22 GMT, "Doug Kanter"
I don't know what the deal is, but thinking back over the years, I don't
recall it ever happening with a lamp or fixture in which the bulb is
installed with the base down - only with base-up situations.
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