Saflex® SG solar absorbing PVB
Advanced interlayer technology for laminated glass
Saflex® SG solar interlayer is a high-visible light, solar absorbing
100
Ultraviolet
laminated safety glazing when properly selected, laminated,
and installed. Plus, Saflex SG is specifically formulated to provide
exceptional durability when exposed to natural weathering.
Transmittance
Reflectance
70
Transmittance (%)
It has the capability to meet or exceed many regulations for
Infrared
80
compared to monolithic clear glass and laminates made with
standard clear polyvinyl butyral (PVB) interlayer.
Visible
90
technology designed to enhance solar heat gain performance as
60
50
40
30
20
10
0
300
350
400
500
600
700
800
900
1000
1500
2000
2500
Wavelength (nm)
Saflex SG interlayer also provides all the benefits of safety
glazing, glass shard containment, structural integrity, sound
Additional benefits of laminated glass
abatement, security, and storm protection when used in the
In addition to proven solar performance, Saflex interlayers deliver
proper configurations.
all the other benefits inherent with laminated glass, including:
The ideal solar product eliminates UV and NIR energy while
Protecting building occupants and pedestrians from
allowing as much visible light transmittance as possible. The
accidental glass impact, breakage, or fallout.
spectral transmittance of a clear laminate of SG41 comprised of
2 lites of 3 mm (1/8 in.) clear glass with a 0.76 mm (0.030 in.)
Saflex SG interlayer is shown in the adjacent chart. As shown,
Providing burglary and forced-entry resistance, bawllistic
protection, and bomb blast resistance.
SG41 has the transmittance characteristics of a highly effective
high-visible transmittance solar product.
Providing hurricane force resistant technology to
laminated glazing systems.
Reducing the transmission of unwanted sound into a
building’s environment.
Saflex® SG series product offering
Product
SG41
Thickness
0.76 mm
Std. widths
Std. lengths
100, 120, 140, 160, 180,
200, 225, 244, 322 cm
250 m
100, 120, 140, 160, 180,
200, 225, 244, 280 cm
247 m
Color
Form
Refrigerated
Clear
Interleaved
Saflex® SG series technical data
Technical properties
Solar
Thermal
UV
Test method
Units
Saflex® SG results
Solar transmittance
%
37
Solar reflectance
%
5
Solar absorptance
%
58
Solar heat gain coefficient (SHGC)
—
0.55
Shading coefficient
—
0.64
—
1.40
W/m2·K
5.66
U factor
BTU/h·ft2·°F
1.00
Transmitted UV
%
<0.01
Damage weighted factor (Tdw)
—
0.23
Visible light transmittance
%
76
Visible light reflectance
%
7
Light to solar gain (LSG)
ISO 9050, NFRC 100
Solar and optical
Architects and designers trust Saflex®
Around the world, architects and designers trust Saflex when
performance and safety are their most critical concerns. The reason
for their confidence is simple. No matter what the specifications or
performance targets, Saflex interlayer technology delivers advanced
glazing performance for demanding applications.
Eastman Chemical Company
Corporate Headquarters
P.O. Box 431
Kingsport, TN 37662-5280 U.S.A.
U.S.A. and Canada, 800-EASTMAN (800-327-8626)
Other Locations, +(1) 423-229-2000
www.eastman.com/locations
Although the information and recommendations set forth herein are presented in good faith, Eastman Chemical
Company and its subsidiaries make no representations or warranties as to the completeness or accuracy thereof.
You must make your own determination of its suitability and completeness for your own use, for the protection
of the environment, and for the health and safety of your employees and purchasers of your products. Nothing
contained herein is to be construed as a recommendation to use any product, process, equipment, or formulation
in conflict with any patent, and we make no representations or warranties, express or implied, that the use thereof
will not infringe any patent. NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OF ANY OTHER NATURE ARE MADE HEREUNDER
WITH RESPECT TO INFORMATION OR THE PRODUCT TO WHICH INFORMATION REFERS AND NOTHING HEREIN
WAIVES ANY OF THE SELLER’S CONDITIONS OF SALE.
Safety Data Sheets providing safety precautions that should be observed when handling and storing our products
are available online or by request. You should obtain and review available material safety information before
handling our products. If any materials mentioned are not our products, appropriate industrial hygiene and other
safety precautions recommended by their manufacturers should be observed.
© 2015 Eastman Chemical Company. Eastman brands referenced herein are trademarks of Eastman Chemical
Company or one of its subsidiaries. The ® used on Eastman brands denotes registered trademark status in the U.S.;
marks may also be registered internationally. Other companies’ brands referenced herein are trademarks of their
respective owners.
www.saflex.com/solar
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