PRODUCT TECHNICAL DATA Saflex® Acoustic (Q series) PVB Interlayer Saflex® interlayers are plasticized polyvinyl butyral (PVB) sheeting produced by Eastman Chemical Company. These interlayers are permanently bonded through a heat and pressure process to two or more pieces of glazing to produce laminates with impact and glass containment properties. Laminated glass with Saflex interlayers can be classified as safety glazing in accordance with, but not limited to, various regulations such as ANSI Z26.1, ANSI Z97.1, AS/NZS 2208; CNS 1183, CPSC 16 CFR 1201, EN 12600 and ISO 29584. Product Overview: Saflex Acoustic, Q series interlayer, is a multi-layer product designed to produce glass laminates with enhanced acoustical properties compared to monolithic glass and laminates made with standard polyvinyl butyral (PVB) interlayer. Saflex Acoustic has demonstrably met or exceeded many regulations for laminated safety glazing (including those listed above) when properly selected, laminated, and installed. Saflex Acoustic was specifically formulated to provide exceptional durability when exposed to natural weathering. Saflex Acoustic suppresses the coincident effect of glass and is ideal for use in exterior laminated glazing to reduce rail, traffic, speech and other airborne noise, and to improve building sound comfort. It’s also ideal for interior applications requiring sound reduction such as cubical dividers, office partitions and enclosed mall storefronts. Other Saflex Acoustic benefits: • Delivers up to 10dB noise reduction (transmission loss) in the critical frequency range, compared to laminated glass made with conventional PVB interlayer. Designed to achieve noise reduction in the building using the same traditional overall glass thicknesses and may be able to achieve desired acoustical performance with thinner configurations allowing for more flexibility in the air space for increased energy conservation. Provides laminators with superior handling and processing as compared to monolithic acoustic interlayers. Meets most safety glazing impacts requirements globally and can therefore be used in areas deemed as hazardous locations by the building code such as doors, skylights and overhead glazing. Extensive application testing has been conducted, including vibration damping measurements and sound transmission loss measurements. For more information on Saflex Acoustic, please contact your Eastman representative. The ability to reduce noise as perceived by the human ear can be measured. This measurement involves sending specific frequencies of sound through a material, in this case, laminated glass with Saflex Acoustic, and remeasuring what comes “through” the glass to determine what gets “filtered” out. The transmission loss is recorded and can be illustrated in graphical form as indicated in the chart below: Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 [email protected] | www.saflex.com | www.vanceva.com product technical sheet - saflex acoustic_031720.do

Available Forms: All Saflex Acoustic is supplied in roll form on 15.2 cm (6 inch) diameter cores. Saflex Acoustic is supplied in thicknesses; 0.64 mm (0.025 inch), 0.76 mm (0.030 inch) and 1.52 mm (0.060 inch), and a variety of roll lengths and widths. Most common standard roll length is 250 meters (820 feet) in thicknesses of 0.76mm (0.030 inch). Saflex Acoustic is supplied in rolls as refrigerated or interleaved with polyethylene that do not require refrigeration (additional charge applies). Interleaving is not available for all products. Saflex Acoustic is produced in clear form only; however,...

Saflex® Acoustic - Select Properties EASTMAN The results of insight' Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 [email protected] | www.saflex.com | www.vanceva.com product technical sheet - saflex acoustic_031720.docx Page 3 of 7

EASTMAN The results of insight' Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 [email protected] | www.saflex.com | www.vanceva.com product technical sheet - saflex acoustic_031720.docx Page 4 of 7

1 - Data based on NOA for Saflex formulation 2 - Safety Glazing impact - 0.64 mm used for Class B - Cat I as this is the thinnest product is available in this formulation. 3 - Solar, Thermal, Optical and Color data based on 0.76 mm clear Saflex Acoustic PVB interlayer with clear nominal 3 mm glass. Calculations performed using OPTIC and WINDOW 7.0 by Lawrence Berkeley National Laboratory. 4 - SPF is a calculated value based on the spectral data from the laminate and not a result of direct testing. EASTMAN The results of insight' Applications Technical Documentation (ATD) 730 Worcester Street...

SAf lex \\\ www.saflex.com The shear relaxation modulus and calculated Young’s modulus of Saflex® Acoustic (Q series PVB interlayer) for a given load duration at temperature is provided for use in calculating structural capacity of laminated glass containing this product. Due to the multi-layer characteristic of this product, it is not feasible to report Young’s Modulus values that are relevant for glass design. Applicable to Saflex Acoustic QS31 and QS41 formulations. Note: If FEM modelling software requires the input of both E and the Poisson’s ratio, the formula E = 3G will yield the calculated...

Notice: Although the information and/or recommendations as may be set forth herein (hereafter “Information”) are presented in good faith and believed to be correct at the date hereof, Eastman Chemical Company and its subsidiaries and affiliates including Solutia Inc. (hereinafter "Eastman") make no representations or warranties as to the completeness or accuracy thereof. Information is supplied upon the condition that the persons receiving same will make their own determination as to its suitability for their purposes prior to use. In no event will Eastman be responsible for damages of any nature...