TUFFAK SK1 prismatic and smooth polycarbonate sheet SKYLIGHT PRISMATIC AND SKYLIGHT SMOOTH TUFFAK SK1 Prismatic and Smooth Sheet are engineered with a UV-resistant cap layer which provides outstanding weatherability in applications directly exposed to sunlight. SK1 sheet is available in clear or white and smooth or prismatic depending on aesthetic preferences and design requirements. TUFFAK SK1 can be drape or thermoformed for use in contoured applications such as domed skylights. The SK1 sheet family of products is tougher than acrylic impact-modified acrylic or glass. This exceptional toughness makes SK1 polycarbonate sheet particularly suitable for skylight applications to avoid breakage from storm-driven hail and to provide protection for roof workers against accidental fall-throughs and injury Figure 1. Impact Resistance. 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 92 Haze ASTM D 1003 100 Water Absorption 24 hours ASTM D 570 0.15 Poissons Ratio ASTM E 132 0.38 Tensile Strength Break 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 Compressive Modulus ASTM D 695 psi 345000 Izod Impact Strength Notched 0.125 ASTM D 256 ftlbsin 16 Izod Impact Strength Unnotched 0.125 ASTM D 256 ftlbsin 60 No Break Instrumented Impact 0.125 ASTM D 3763 ftlbs 47 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 TUFFAK SK1 polycarbonate sheet has a Limited Product Warranty against breakage yellowing and loss of light transmission. The terms of the warranty are available upon request. Coefficient of Thermal Co
nductivity ASTM C 177 BTUinhrft2F 1.35 Heat Deflection Temperature 264 psi ASTM D 648 F 270 Heat Deflection Temperature 66 psi ASTM D 648 F 280 Brittleness Temperature ASTM D 746 F -200 Horizontal Burn AEB ASTM D 635 in 1 APPLICATIONS Ignition Temperature Self ASTM D 1929 F 1022 ASTM D 1929 F 824 Skylights sloped vertical and curved glazing glazed archways covered pedestrian walkways barrel vaults awning and entryway canopies FLAMMABILITY Ignition Temperature Flash Typical properties are not intended for specification purposes Some properties characterized using non-textured sheet TUFFAK SK1 prismatic and smooth polycarbonate sheet Figure 1. Impact Resistance Comparison Impact Resistance 50 47 Total Energy ftlbs 40 30 20 10 5 0 0.5 Glass 2 Acrylic IMA TUFFAK SK1 Instrumented Impact per ASTM D 3763 sample thickness is 0.125 nominal Smooth Surface - No Pattern Regulatory code compliance and certifications ANSI Z97.1-2009 2015 American National Standard for Safety Glazing Materials Used in Buildings Safety Performance Specifications and Methods of Test Class A Unlimited Florida Building Code 2017 6th Ed. High Velocity Hurricane Zone Classified Miami-Dade NOA NOA Hail Impact Resistance FM 4431 Class 4 Severe Rating Pass IBC 2012 Rating for Horizontal Burn Rate ASTM D635-10 CC1 IBC 2012 Self Ignition Greater than 650F ASTM D1929-13a Pass UL 94 Flammability File E87887 UL 972 Burglary Resistant File BP2126 These suggestions and data are based on information we believe to be reliable. They are offered in good faith but without guarantee as conditions and methods of use are beyond our control. We recommend that the prospective user determines the suitability of our materials and suggestions before adopting them on a commercial scale. 2019 PLASKOLITE LLC 052019 TUFFAK is a registered trademark of Plaskolite LLC PLASKOLITE 400 Nationwide Blvd Suite 400 Columbus OH 43215 4 plaskoliteplaskolite.com www.plaskolite.com PDS169
