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[Adam Whetham]

To hold dicro lenses in place and to hold some other things together in a 250watt halogen fixture.

Anyone have product that they know works? We have a proprietary fiber unit that has a lamp glued into a holder/reflector. The company wants an outragous price for it. So I'm trying to do the next logical thing...

[Rob Timmerman]

Figure out how hot the fixture gets, and then you can more intelligently choose your glue.  Your local auto parts store should have a reasonable selection of high-temperature adhesives as well.

And FWIW, I've repaired the body of a 500W Altman 3.5Q using high-temp epoxy putty, and it lasted 2 months of touring before I left the company.  So some of the high-temp adhesives do work.

[Adam Whetham]

Wish I could figure out how hot it gets as the lamp is burned out... I guess I might have to buy one of their lamps....

They used a white ceramic kind of glue... I guess I'll have to go digging...

[Brian Ship]

Lycian uses high temperature Silicone adhesive such as or similar to McMaster Carr Part #74515A32 Dow Corning 736 Heat-Resistant Silicone 3.0 Ounce Tube to glue as it were the heat shields to the plates for them.  Might work for what you are doing.  

For Gobos, I use 76455a27 high temerature fibreglass electrical tape 3M Scotch 69 Fiberglass Hi-Temp Electrical Tape 1/2"x66' to fix them to the gobo holder better.  

For adhesive on lamps, most lamp manufacturers use a sort of ceramic paste similar to what's available in one form or anther below.  

When I need to do a service call to say a 5K DPY lamp, I normally use 7551a23 4oz. High-Temperature Ceramic Putty Cotronics Corp. #7020  in combination with 7482A31 1# Resbond #907 Ind. St. Fireproof Adhesive Cotronics Corp.  

This in general with the various thicknesses of 87575K83 1/32"x3"x50' Ceramic Fiber Strip as insulator pads.

[Brian Ship]

250w lamps are not that hot - taken not literally as a slam.  The concept of buying the lamp with reflector assembly is an optically aligned assembly.  There is a website out there that offers to replace the lamps given used reflectors at a discount.  Ran across them about a week or so about in a pamflet.  Have to do a search for what company offers that is at work in the moring but there is a company out there that will take used gear and optically align a new lamp in it for you.

Used to think JDR/MR-16/E-26 lamps much less AR-111 lamps should be field replacable also and they should be.  Norman Lamps at least I think offers such above lamp types, but for the replacement projector/fiber oriented lamps, while they might, I'm thinking of another company.

I'll check in the morning, but otherwise if dead set on doing it yourself, I would say in the last post the high temperature silicone adhesive would do the trick.

[Adam Whetham]

Brian, that is a wealth of info there. I bow to you and thank you for the products that should do the trick.