Acrylite® GMS Aerospace Grade Acrylic Sheet - MIL-PRF-5425E
ACRYLITE® GMS acrylic sheet meets and is qualified to AECMA 4364 and MIL-PRF-5425 for use in the aviation industry in applications where exacting standards are established for aircraft applications. It has premium optical quality, dimensional stability, and extra-ordinary flatness and tolerance control.
Current applications include instrument panels, wing tip lenses, dust covers, helicopter bubbles and aircraft canopies. ACRYLITE® GMS sheet is used in aerospace trans- parent enclosures in monolithic or laminated form.
Fabrication techniques used on standard cell cast acrylic sheet will be appropriate for ACRYLITE® GMS sheet. When drape forming this sheet, excellent results can be achieved if the sheet is heated evenly between 302 °F and 320 °F. For pressure forming or vacuum forming operations temperature of 338 °F to 374 °F are recommended.
Properties
• UV transmittance < 1 % (UV range of 290–330 nm)
• Certified to aviation standard AECMA 4364 and for MIL-PRF-5425 and listed on the QPL
• Is a cell-cast acrylic with excellent weather resistance specially developed to meet the high optical requirements of the aviation industry
Acrylite® GMU General Aviation Grade Acrylic Sheet AMS-LP-391, Item A, Type I, Grade C
ACRYLITE® GMU sheet is a cell cast acrylic sheet designed for general aviation and helicopter window applications and is superior to standard cell cast acrylics in both optical quality and
thickness tolerance. It is manufactured and certified to meet the requirements of AMS-LP-391, Item A, Type I, Grade C.
ACRYLITE® GMU sheet is used for aviation applications where military specifications are not required at an economical cost.
Fabrication techniques used on standard cell cast acrylic sheet will be appropriate for ACRYLITE® GMU sheet. When drape forming this sheet, excellent results can be achieved if the sheet is heated evenly between 302 °F and 320 °F. For pressure forming or vacuum forming operations temperature of 338 °F to 374 °F are recommended.
Properties
• UV transmittance < 1 % (UV range of 290–330 nm)
• ACRYLITE® GMU sheet is tested to high optical stan- dards. We do certify it to AMS-LP-391, Item A, Type I, Grade C.
Acrylite® 249 Aerospace Grade Cross linked Cell Cast Acrylic Sheet MIL-PRF-8184F
ACRYLITE® 249 acrylic sheet meets and is qualified to AECMA 4365 and MIL-PRF-8184 (Type I, Class 2).
ACRYLITE® 249 is a cross-linked cast acrylic sheet with increased resistance to crazing and solvent attack, as well as improved dimensional stability after heating.
ACRYLITE® 249 sheet is used in a wide variety of commercial, military and rotary wing transparencies in monolithic or laminated form.
Most fabrication techniques used with other acrylic sheet materials can also be followed when fabricating ACRYLITE® 249 sheet. Forming techniques may vary slightly.
Properties
• UV transmittance < 1 % (UV range of 290–330 nm)
• Certified to aviation AECMA 4365 and listed on QPL for Mil-PRF-8184
• Cross-linked acrylic sheet developed to withstand craze and weathering
• Offers higher resistance to media that cause stress cracking and a higher heat deflection temperature
• Excellent suited for stretching, which makes it possible to improve its properties even further over the unstretched state
• As MIL-PRF-8184 Type I, Class 2 material, Class 2 material is acceptable for Class 1 applications
Acrylite® Stretched Certified to aviation AECMA 4366 and listed on the QPL for MIL-P-25690
ACRYLITE® Stretched acrylic sheet meets and is certified to AECMA 4366 and MIL-P-25690.
ACRYLITE® Stretched is a advanced ACRYLITE® 249 cross-linked material. The stretched acrylic increases the resistance to crazing and solvent attack, as well as improves mechanical behavior.
ACRYLITE® Stretched is used in a wide variety of commercial, military and rotary wing applications in monolithic or laminated form.
Most fabrication techniques used with conventional acrylic sheet materials can also be followed when fabricating ACRYLITE® Stretched sheet. Forming of stretched acrylic sheet requires unique and more sophisticated processing parameters. Forming temperatures should not exceed 230°F and forming times are much longer than with unstretched acrylic.
Properties
• UV transmittance < 1 % (UV range of 290–330 nm)
• Certified to aviation AECMA 4366 and listed on the QPL for MIL-P-25690
• Offers higher resistance to environmental conditions
• Is produced from ACRYLITE® 249, AECMA 4365 and Mil-PRF-8184
• Superior optical quality as well as thickness tolerances due to grinding an polishing of the material
• MIL-P-25690 Class 2 material, it is also suitable for Class 1 applications
