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Discussion Starter · #1 ·
I'm tyring to locate suitable acrylic to slip into my DIY hood that houses some AHSupply lights. Similar to the same acrylic cover used by Coralife Aqualights. Regular acrylic pieces from the hardware stores don't work since they warp. I called several local acrylic shops but none of seem to even know about heat resistent acrylic. They suggested using either glass or extremely thick acrylic.

What kind of acrylic are the aqualights using?
If I end up with glass instead do I need to worry about cracking (high heat + cool water)?
 

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Discussion Starter · #3 ·
Gomer said:
http://www.mcmaster.com/

(raw plastics is in the bottom section on the right)

perhaps you might want to try a polycarbonate like lexan?
Thanks for this link. So I assume the aqualights are using polycarbonate?

And a random question for Tony - did you ever have your glass canopy (30 gallon) crack with the AHSupply lights sitting directly on them?
 

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Discussion Starter · #6 ·
Nothing? For one if water splashes on a hot bulb I'm sure it will crack. It has happened to me with other types of bulbs, not CF, but I'm not going to experiment. :wink: Only on raised fixtures I haven't had covers, but this one isn't raised.

Main reason though - I need to add it to maximize the efficiency of the fan cooling. With an open bottom there is a lot of air bypass. If it is closed then air is entering and exiting the fixture through the fans only, and passes fully over the bulbs.

So polycarbonate is ok? I contacted a local supplier and he said it was definately better then acrylic, but was still leary.
 
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