1. Your Energy Investment Optimized
Low-Iron Pattern Glass Features
Standing behind excellence in your solar EcoGuard Pattern AR utilizes Guardian’s highest
energy solutions is a company committed to performing solar glass, EcoGuard Pattern and a
providing you with glass innovation. Guardian has specially designed anti-reflective coating that
been manufacturing high-quality glass solutions for maximizes the sunlight’s available energy. This is
more than 75 years, with a comprehensive product especially true for sunlight that is diffused or at low
line that includes glass and coatings for solar angles to the receiver. Peak wavelength optimiza-
energy applications. EcoGuard Pattern AR is a tion is possible.
high performing solar glass with an anti-reflective
coating designed to optimize the available sunlight EcoGuard Pattern AR is available in 3.2mm and
while resisting harsh environmental conditions. 4.0mm tempered lites.
Guardian Industries operates in state of the art Applications
manufacturing centers around the world, so we are
always nearby when you need us. EcoGuard Pattern AR is designed specifically for PV
module applications that call for a single-sided
anti-reflective coating.
EcoGuard Pattern AR
with matte/matte finish

2. Product Summary
EcoGuard Pattern EcoGuard Pattern AR
Solar Light Solar Light
Transmission Transmission Transmission Transmission
Thickness Design (Te) 1 (Tpv) 2 (Te) 1 (Tpv) 2 Strength
3.2 mm Matte / Matte 91.3 % 91.6 % 93.7 % 94.5 % Tempered
4.0 mm Matte / Matte 91.2 % 91.5 % 93.4 % 94.4 % Tempered
Representative Transmission Data
EcoGuard Pattern AR
EcoGuard Pattern
Notes:
1. e: solar transmission @ AM 1.5 (ISO 9050) over
T
300–2500 nm.
2. pv: solar transmission from 400 - 1200 nm:
T
Quantum Efficiency (QE) of a typical c-Si PV
module [400 - 1200 nm].
nm
Advantages: Manufacturing Advantages: Performance
• ully integrated process - Guardian manufactures
F • odule output increases of up to 3% at normal
M
its own low-iron glass, then applies the coating incident testing and up to 5% in installed
and tempers the glass at one location performance
• edicated manufacturing equipment designed
D • Peak wavelength optimization is possible
specifically for the application of the anti-
reflective coating • mproved module performance in both
I Guardian Industries Corp.
direct and low-angle sunlight EcoGuard Solar Glass
• worldwide leader in glass and glass coating
A 14511 Romine Road
production ensures consistent, high quality • xceeds all IEC temperature and humidity
E
Carleton, MI 48117
products testing requirements +1.800.521.9439
solarglass@guardian.com
Advantages: Guardian Durability Testing Guardian Europe S.à r.l.
• rack record of optimizing customers’
T • Damp Heat IEC 61215: 480 h Zone Industrielle Wolser
energy costs • Humidity Freeze IEC 61215: 10 cycles
L-3452 Dudelange
Grande-Duche de Luxembourg
• Global solar asset base • hermal cycling test of PV modules
T +352.52.11.15.01
• Stable, privately held company with clear focus with AR glass (IEC 61215): 480 h solarglass.europe@guardian.com
• radition of glass innovation backed by broad
T • Salt fog: 96 h www.guardian.com/solarenergy
solar RD • ther tests passed: Water boil, Tape pull,
O
• dvanced and proprietary manufacturing
A Taber, NaOH soak, Finger print
capabilities clean-ability and Crockmeter
• Rich, diverse product and technology pipelines
EcoGuard is a registered trademark of Guardian Industries Corp.
©2012 Guardian Industries Corp. V120130