Spartech® Polycast™ UV-SC UV Blocking & Solar Heat Control Cell Cast Acrylic Sheet

TECHNICAL BULLETIN Polycast UV-SC UV Blocking Solar Heat Control Cell Cast Acrylic Sheet Performance Characteristics Comparisons SOLAR ENERGY VS. VISIBLE LIGHT TRANSMISSION The graph below depicts the typical relationship between solar energy transmission and visible light transmission when using traditional colors versus Polycast UV-SC colors. 100 SPECTRAL TRANSMISSION COMPARISONS OF GLAZING MATERIALS These two graphs illustrate the type of radiation allowed to pass through two different glazing materials. Graph A compares standard clear acrylic with Polycast 82SC while Graph B shows differences between traditional 2515 and SC15 Gray. 82SC vs. Clear Acrylic VISIBLE INFRARED HEAT 90 Clear Acrylic 80 70 60 82SC 50 40 30 90 20 Traditional Colors 10 80 0 2600 2400 2200 2000 1800 1600 1400 60 1200 1000 800 600 400 70 200 Solar Energy UV 100 transmittance Polycast UV-SC is a custom cell cast acrylic sheet solution that blocks out significant amounts of near-infrared NIR radiation while maintaining high visible light transmission. This aircraft-quality monolithic glazing material can be manufactured to MIL-PRF 5425 8184 and 25690 DTD-5592 L-P-391 ASTM D-4802 and other specifications. It is available in a wide range of colors and light transmissions including Night Vision Compatibility NVG. wavelength nm 50 SC15 vs. 2515 SC Colors 40 UV 100 30 VISIBLE INFRARED HEAT 90 20 0 20 30 40 50 60 70 80 90 Visible Light 2515 70 60 50 SC15 40 30 20 10 0 69 Southfield Ave. Stamford CT 06902 800-243-9002 Fax 800-955-0053 or 573-335-5661 www.spartech.com 1200 wavelength nm 1100 1000 900 800 700 600 500 400 300 Note Both Polycast UV-SC materials transmit high amounts of visible light 400 to 700 mm and transmit much less radiation in the near-infrared NIR and in the UV. The NIR and UV regions contain significant amounts of solar energy but do not contribute to visibility. transmittance 80 10 UV-SC COLOR EXAMPLES VISIBLE LIGHT SOLAR ENERGY ENERGY REDUCTION Clear Acrylic 82SC 92

82 85 53 15 47 2111 Green SC11 Green 77 72 75 45 25 55 2515 Gray SC15 Gray 76 72 74 51 26 49 2540 Bronze SC40 Bronze 75 71 72 47 28 53 2256 Gray SC56 Gray 65 65 66 47 34 53 2094 Gray SC94 Gray 45 45 49 38 51 62 2537 Gray SC37 Gray 32 32 41 27 59 73 2412 Bronze SC12 Bronze 27 27 35 26 65 74 2064 Gray SC64 Gray 26 26 34 24 66 76 2130 Green SC30 Green 23 24 40 21 60 79 2538 Gray SC38 Gray 16 15 26 15 74 85 2074 Gray SC74 Gray 13 13 32 13 68 87 2370 Bronze SC70 Bronze 10 10 16 13 84 87 COLOR NVG COMPATIBLE COLORS COLOR DESCRIPTION RELATIVE HEAT GAIN BTUHR X FT