ACRYLITE® GMS ACRYLIC SHEET
ACRYLITE GMS Aerospace Acrylic Sheet is manufactured to meet or exceed the requirements of military specification MIL P-5425E. ACRYLITE GMS sheet is manufactured in equipment that is reserved for aerospace acrylic products, is subjected to a preshrunk cycle, and undergoes an optical inspection which is among the most critical in the industry.
Any fabrication technique that is appropriate for standard cell cast acrylics will be equally appropriate for ACRYLITE GMS sheet. When drape forming ACRYLITE GMS sheet, excellent results can be achieved if the sheet is heated evenly between 300°F and 320°F. For pressure forming or vacuum forming operations temperatures of 340°F to 380°F are recommended
ACRYLITE GMS sheet is used in aerospace transparent enclosures in monolithic or laminated form. Current applications for ACRYLITE GMS sheet include instrument panels, wingtip lenses, dust covers, helicopter bubbles and aircraft canopies.
The table below shows typical values for 0.250 inch thick
Some values will change with thickness.
ANGULAR DEVIATION ASTM D-637 <3 minutes
TENSILE STRENGTH ASTM D-638 11,000 psi
ELONGATION ASTM D-638 5.7%
FLAMMABILITY ASTM D-635 1.25 inch/min
DEFLECTION TEMPERATURE ASTM D-648 115°C
INTERNAL STRAIN MIL P-5425E <1%
RESISTANCE TO WEATHERING MIL P-5425E and
(10 days accelerated)
LIGHT TRANSMISSION 92.6% 92.3%
HAZE 0.40% 0.40%
SPECIFIC GRAVITY ASTM D-792 1.19
THERMAL EXPANSION ASTM D-696 0.000061 in/in-°C
WATER ABSORPTION (24 hr) ASTM D-570 0.33%
* Not for specification purposes