Tomasso wrote:

"Zak" wrote:
The ceramic end on the 500W bulb in my quartz halogen floodlight has
cracked.

I have repaired it with Araldite Rapid.

Will the temperature of the bulb be too much for the adhesive?

I have a feeling that Araldite can not be used at very high temps but
can't find a Google reference which gives any real information

You could also use Duct Tape (Gaffer Tape) - the high temp version. :-).

I do recall a high temp "dope" for sealing up vacuum system (OK to about
10^-5 Torr, I think). Sealed holes in glass and was flexible enough to
handle temp variations without losing seal.

Can't remember what it was called.

Glyptal thermoset resin (phtalic anhydride, glycerin, red pigment...).

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf