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Evonik Cyro LLC is the successor to Cyro Industries.
Cyro Industries produced a type of acrylic called Acrylite GMU...
ACRYLITEŽ GMU acrylic sheet is designed for general aviation and helicopter glazing applications. Superior to standard cell cast acrylic sheet in both optical quality and thickness tolerance. ACRYLITE GMU sheet is certified to Military Specification MIL LP-391(MIL P-8184F and MIL P-5425E)
Acrylic Sheet: Thickness: Colors
48" x 72", 48" x 96", 60" x 96", 72" x 72", and 72" x 96" .060", .080",.100", .125" .150", .187", .220", .250", .375", .500" Colorless and colors
http://www.acrylite.net/product/acrylite/en/Pages/default.aspx
continuing on to the present era, Aircraft Windshield Company in Los Alamitos, CA made the molds for the Lancair 235, 320/360 as well as the Legacy. They are very much still in business and will make you a replacement canopy. Apparently, they can get two 320/360 canopies from a single sheet of Acrylite GMU.
This is the only type of acrylic they use for aviation purposes. Did you know that a 235 has larger acrylic area than the 320/360? You do now...
Anyway, they suggest using isopropyl alcohol, naptha(lighter fluid), plexus plastic cleaner, and if you are in some 3rd world region where none of these are available, they also suggest draining some hydraulic fluid from your brake system and use it!
In the end, I had success with De-SOLV-IT
http://www.dtep.com/de-solv-it.htm
Angier Ames
N4ZQ
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