[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PSUBS-MAILIST] Perry lockout



Careful there.... polycarbonate has some attractive properties, but it is NOT stronger than acrylic (plexiglass)
 
A quick check on a couple places...
 
Compressive Strength
Polycarbonate  12000 PSI
Acrylic Sheet    14500-17000 psi
Cast Acrylic     11000-19000 psi
 
Tensile Strength
Polycarbonate   9,500 PSI
Acrylic Sheet    7980-12300 psi
Cast Acrylic     8000-11000 psi
 
Mark Roberts
 

The interior of this six person chamber was painted with a special epoxy paint, and when you use the chamber you must wear 100 percent cotton clothing with no dies in it to reduce the chance of electrostatic shock. You can see in this picture the intake and exhaust of the O2 as well as external lighting fixtures shining through the Hyzod view ports, now called Makrolon. The bulb in this light fixture is a screw in flouresant type to keep the heat down on the view port as well as the interior of the chamber.

http://www.frappr.com/?a=viewphoto&id=2384531&pid=3842505&myphotos=1

Makrolon is used by NASA and it gives you allot more strength per thickness compared to plexiglass. I find it easier to have my view ports water jet cut.

http://www.sdplastics.com/shef2.html

http://k-mac-plastics.com/hyzod-polycarbonate-sheet.htm

****************************************