Saflex Solar Product Datasheet
7Pages

PRODUCT TECHNICAL DATA Saflex® Solar (S series) – Polyvinyl Butyral Interlayer Saflex® interlayers are plasticized polyvinyl butyral (PVB) sheeting produced by Eastman Chemical Company and its affiliates. These interlayers are permanently bonded through a heat and pressure process to two or more pieces of glass to produce laminated glass with impact and glass containment properties, as well as other added features. Laminated glasses with the properly selected type of Saflex interlayer are capable of being classified as safety glass 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 Solar interlayers, SG and SH formulations, are very effective, high visible light transmitting, solar control products designed to produce glass laminates with enhanced solar heat gain performance as compared to monolithic clear glass and laminates made with conventional clear polyvinyl butyral (PVB) interlayer. Saflex Solar interlayers have the capability to meet or exceed many regulations for laminated safety glazing (including those listed above) when properly selected, laminated, and installed. Saflex Solar interlayers were specifically formulated to provide exceptional durability when exposed to natural weathering. Saflex Solar utilizes an absorbing technology that can be used alone, in conjunction with other Saflex and Vanceva® interlayers, with colored, spectrally select and coated glasses and as one or more lites in insulating glass units (IGU). The product is designed for use in exterior laminated glazing, especially in markets that require solar control configurations not easily adapted to the inclusion of low-e glazings or complex configurations. Laminated glass with Saflex Solar is ideal for use in retrofit applications were the overall thickness for the glass unit is limited, the glass is curved, or the framing system cannot accommodate an IGU or for historic reasons the frame cannot be modified. Saflex Solar provides a good level of solar control in thicknesses as low as 5 – 6 mm (3/16 inch – 1/4 inch). Saflex Solar interlayer also provides all the benefits of safety, glass shard retention, structural integrity, sound abatement, security and storm protection when used in the proper configurations. Other Saflex Solar benefits include:        Solar Heat Gain Coefficient (SHGC; g value) in 3 mm (1/8 inch) clear glass below 0.65 – 0.55. Visible Light Transmittance in 3 mm clear glass of > 70%. Embedded interlayer performance reduces scratching and defect formation during processing Uniform and consistent dispersion (for uniform look across a façade) Reduces angular color concerns Edge deletion not required Digital signage For more information on Saflex Solar, please contact your Eastman representative. The ability to reduce radiation and thus solar heat gain through glazing can be measured and calculated. This measurement involves spectral transmittance scans being conducted within the Ultra-violet (UV), Visible (VT) and Near Infra-red (NIR) wavelengths. An optimum solar glazing for building use eliminates UV and NIR wavelengths while allowing as much visible light transmittance as possible. The spectral graph below shows the transmittance through the UV, Visible and NIR wavelengths of a laminate configured as 3 mm (1/8 in) clear glass – 0.76 mm (0.030 in) Saflex Solar – 3 mm (1/8 in) clear glass. Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 glazing@eastman.com | www.saflex.com | www.vanceva.com product technical sheet - saflex so

Figure 1: Spectral Data for Saflex® Solar interlayers: Configuration 3 mm (1/8 in) clear glass – 0.76 mm (0.030 in) Saflex Solar – 3 mm (1/8 in) clear glass; Formulations SG and SH. Available Forms: All Saflex® Solar interlayers are supplied in roll form on 15.2 cm (6 inch) diameter cores. Saflex Solar interlayers for the architectural market are supplied in two formulations (SG and SH). They are available in a variety of roll lengths and widths. Most common standard roll length is 250 meters (820 feet) in thicknesses of 0.76 mm (0.030 inch). Saflex Solar is supplied in rolls as...

Laminating Conditions: Eastman makes available to our fabricating customers a Saflex Laminating Guide which details nominal methods for storage, handling, and lamination. This technical guide is available only from a Saflex Technical Service (TS) Representative or Saflex Sales Manager. To find the name of the Saflex representative for your organization, call 1-800-636-8670. Saflex® Solar - Select Properties1: EASTMAN The results of insight Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 glazing@eastman.com | www.saflex.com | www.vanceva.com product...

Applications Technical Documentation (ATD) 730 Worcester Street | Springfield, MA 01151 glazing@eastman.com | www.saflex.com | www.vanceva.com product technical sheet - saflex solar_031720.docx Page 4 of 7 EASTMAN The results of insight

1 - Data based on NOA for Saflex formulation 2 - ASTM D635 product self-extinguished, no values for extent or rate of burn could be obtained. 3 - Safety Glazing impact - 0.76 mm used for Class B - Cat I as this is the thinnest product available in this formulation. 4 - Solar, Thermal, Optical and Color data based on 0.76 mm clear Saflex Solar PVB interlayer with clear nominal 3 mm glass. Calculations performed using OPTIC and WINDOW 7.0 by Lawrence Berkeley National Laboratory. 5 - SPF is a calculated value based on the spectral data from the laminate and not a result of direct testing....

Saflex Solar CIE L*a*b* color properties are indicated below. The color depiction boxes simulate RGB converted values from transmittance values from a modeled 3 mm clear glass | Saflex 0.76 mm interlayer (as designated) | 3 mm clear glass. The values and diagram serve as a guide only, mock-up samples should be reviewed. The relaxation modulus and calculated Young’s modulus for Saflex Solar (PVB interlayer) based on relaxation modulus values for a given duration at temperature is provided for use in calculating structural capacity of laminated glass containing this product. EASTMAN The...