Modern Plastics offers Spartech Polycast cast acrylic sheet products, which are the ideal material for aircraft transparencies. Spartech Polycast is known, the world over, as a leading producer of cast acrylic sheet for cabin windows, fighter canopies, windscreens, wing-tip lenses, outer laminates and instrument panels for general aviation and military aircraft.
Spartech Polycast has been manufacturing cast acrylic sheet for over 30 years and is presently the principal supplier of acrylic sheet meeting U.S. Military Material Specifications MIL-P-5425, MIL-P-8184 and MIL-P-25690 to the United States aerospace industry. Spartech Polycast has developed an enhanced crazed-resistant material and MIL-P-8184 has been revised to recognize the improved performance of this material.
POLY II (MIL-P-5425) military specification covering heat-resistant, preshrunk, clear, and colored acrylic sheet. Material supplied for conformance for this specification is identified by the name POLY II®. Polycast is qualified to furnish sheets in thickness 0.060-1.000 to meet this specification.
POLY 76 (MIL-P-8184) is a crosslinked, preshrunk acrylic with excellent resistance to crazing, solvent attacks and thermal dimensional change. As one of few U.S. Military approved materials for stretched panels (MIL-P-25690), sophisticated applications for both military and commercial aircraft are numerous. Availability in transparent colors enhances the versatility of this product. It meets or exceeds all requirements of MIL-P-8184.Type I and II, Class 1 and 2.
POLY 84 (MIL-P-8184) is a uniquely formulated, crosslinked preshrunk acrylic specifically designed to provide superior craze and solvent resistance for today’s changing environment. Improvements such as lower water absorption and increased resistance to acids expands the number of “as cast” applications. Poly 84 also meets or exceeds MIL-P-8184, Type I and II, Class 1 and 2. Its superior craze resistance makes it ideal for monolithic windscreens, outer laminates and canopies. It is also available in transparent colors. It meets or exceeds all requirements of MIL-P-8184.Type I and II, Class 1 and 2.
Polycast Poly II, 84, 76 are registered trademarks of Spartech Polycast.