At 11:59 AM 7/26/2013, neil n wrote:
>Easy fix but and the bulb itself may be just fine, but have to wonder

Vinyl dip is not a workable fix for a halogen bulb, all it will do is
convert to carbon which is conductive.  And smoke up everything in the process.

H3 lamps burn extremely hot, you'll see blueing of the metal after
they've run for a while, and may have heat-related problems with the
ground connections.

I could see possibly using muffler cement as an insulator if
necessary, but physical space is really all you need.  You're only
working with twelve volts.

Yrs,
d