TUFFAK GP-V polycarbonate sheet GENERAL PURPOSE TUFFAK GP-V sheet is a polished surface UV stabilized transparent polycarbonate product. GP-V is a flame retardant grade with a UL 94 V-2 rating at 0.060 and greater then improves to V-0 rating at 0.220 and greater. Other properties include outstanding impact strength superior dimensional stability high temperature resistance and high clarity. This lightweight thermoformable sheet is also easy to fabricate and decorate. TUFFAK GP-V sheet is offered with a five 5 year Limited Product Warranty against breakage. The terms of the warranty are available upon request. Typical Properties Property Test Method Units Values PHYSICAL Specific Gravity ASTM D 792 1.2 Refractive Index ASTM D 542 1.586 Light Transmission Clear 0.118 ASTM D 1003 86 Light Transmission I30 Gray 0.118 ASTM D 1003 50 50 Light Transmission K09 Bronze 0.118 ASTM D 1003 Light Transmission I35 Dark Gray 0.118 ASTM D 1003 18 Water Absorption 24 hours ASTM D 570 0.15 Poissons Ratio ASTM E 132 0.38 Tensile Strength Ultimate ASTM D 638 psi 9500 Tensile Strength Yield ASTM D 638 psi 9000 Tensile Modulus ASTM D 638 psi 340000 Elongation ASTM D 638 110 Flexural Strength ASTM D 790 psi 13500 Flexural Modulus ASTM D 790 psi 345000 Compressive Strength ASTM D 695 psi 12500 APPLICATIONS Compressive Modulus ASTM D 695 psi 345000 Izod Impact Strength Notched 0.125 ASTM D 256 ftlbsin 18 Industrial parts and components of electrical devices requiring UL 94 V-rated performance thermoformed and fabricated parts Izod Impact Strength Unnotched 0.125 ASTM D 256 ftlbsin 60 no break Instrumented Impact 0.125 ASTM D 3763 ftlbs 47 Shear Strength Ultimate ASTM D 732 psi 10000 Shear Strength Yield ASTM D 732 psi 6000 Shear Modulus ASTM D 732 psi 114000 Rockwell Hardness ASTM D 785 M70 R118 3.75 x 10-5 MECHANICAL THERMAL Coefficient of Thermal Expansion ASTM D 696 ininF Coefficient of Thermal Conductivity ASTM C 177 BTUinhrft2F 1.35 Heat Deflection Temperature 264 ps
i ASTM D 648 F 270 Heat Deflection Temperature 66 psi ASTM D 648 F 280 Brittleness Temperature ASTM D 746 F -200 Shading Coefficient clear 0.236 NFRC 100-2010 0.97 Shading Coefficient Gray or Bronze 0.236 NFRC 100-2010 0.77 U factor 0.236 summer winter NFRC 100-2010 BTUhrft2F 0.85 0.92 U factor 0.375 summer winter NFRC 100-2010 BTUhrft2F 0.78 0.85 Dielectric Constant 10 Hz ASTM D 150 2.96 Dielectric Constant 60 Hz ASTM D 150 3.17 Volume Resistivity ASTM D 257 Ohmcm 8.2 x 1016 Dissipation Factor 60 Hz ASTM D 150 0.0009 Stainless Steel Strip electrode ASTM D 495 Seconds 10 Tungsten Electrodes ASTM D 495 Seconds 120 ASTM D 149 Vmil 380 ELECTRICAL Arc Resistance Dielectric Strength in air 0.125 FLAMMABILITY Some properties characterized using non-textured sheet. Flame spread and smoke developed data recorded while material remained in original test position. Ignition of molten residue on the furnace floor resulted in higher values. See UL File R21646 for more information. Horizontal Burn AEB ASTM D 635 in 1 Ignition Temperature Self ASTM D 1929 F 1040 Ignition Temperature Flash 824 ASTM D 1929 F Flame Class 0.060 UL 94 V-2 Flame Class 0.220 UL 94 V-0 Building Materials surface-burning 0.060 - 0.250 UL 723 Flame Spread Smoke Developed 5 75
