Technical Data

The anti-soiling effect of the duraGLARE coating has been proven by special measurements of the specular reflectivity of coated and uncoated mirrors. The data clearly shows the additional performance of duraGLARE coated mirrors.

Reflectivity of clean mirrors

Reflectivity at soiling level 1

Reflectivity at soiling level 2

Uncoated 94.2% 89.1% (- 5.2%) 45.6% (-48.6%)

duraGLARE 94.2% 91.5% (-2.7%) 67.4% (-26.8%)

Solar Product Information

duraGLARE A coating with dust repellent properties designed to enhance reflectivity and reduce cleaning efforts

mirrors side-by-side in outdoor test, specular reflectivity at 660 nm, measured at different measurement days (soiling level 1 & 2)

duraGLARE

uncoated

Persuasive Advantages at a Glance:Dust Repellent Properties duraGLARE gives solar mirrors the ability to repel all sorts of dust, sand and various particles. The adhesion of dust and particles will be reduced significantly. The optimal reflectivity properties of the mirrors remain the same throughout the worst environmental conditions. It is proven that duraGLARE coated mirrors show far less soiling ef-fects than uncoated mirrors in the same conditions. Facilitated Cleaning Process

duraGLARE will facilitate the cleaning process and cleaning intervals and thus reduce costs. An

expensive mechanical cleaning process is no longer necessary, as it is sufficient just to rinse the mirrors. The cleaning intervals in the solar field can be ex-tended with the use of these specialized mirrors.

Optical Neutrality duraGLARE is optimized for solar applications and designed to reach the highest optical transparency. Due to these properties, no major objectionable in-fluence to the initial reflectivity of the solar mirror is to be measured and can be neglected by the addi-tional gain of the enhanced reflectivity compared to uncoated, soiled mirrors.

Soiling Test

Cha

nge

of re

flect

ivit

y in

%

Days

0

-10

-20

-30

-400 10 20 30 40 50

duraGLARE

uncoated

Reflectivity Measurement

Stan

dard

ized

refle

ctiv

ity

in %

Date

104

100

96

92

8812/11 01/12 02/12 03/12 04/12 05/12

Cleaning and Handling

The duraGLARE coating should be cleaned by spraying DI-water on the mirror surface. As the coating has easy-to-clean properties this cleaning process is sufficient enough to restore the initial reflectivity. A good rainfall would do this task as well. The use of brushes or other mechanical cleaning is not necessary and should be avoided in order to not harm the functional coating. duraGLARE coated mirrors should be touched with clean gloves.

No representations or warranties, express or implied, are made by FLABEG or any of its representatives or affiliated companies concerning the accuracy or completeness of the solar product information. FLABEG expressly disclaims all liability regarding accuracy or completeness of the solar product information.

FLABEG Holding GmbH, Waldaustrae 13, 90441 Nuremberg, Germany, Phone: +49 911 96456 0

FLABEG Solar US Corp, 2201 Sweeney Drive, Clinton, PA 15026, USA, Phone +1 724 899 4622 www.flabeg.com

Test campaigns, including washing procedures have been performed. By measuring specular reflectivity in the field, it is proven that the duraGLARE coated mirrors show up to 50 % less soiling than uncoated mirrors.

uncoated

Performance

approx. 2 % additional reflectivity, easy-to-clean

effect restores the initial reflectivity

duraGLARE

Solar Product Information

Reflectivity measurement Outdoor exposure experiences since the beginning

of 2011 (USA - Florida, Arizona, California - Spain, Germany, Kuwait, Abu Dhabi, includes field tests with complete loops) Outdoor aging tests and field tests since the middle of 2011 Dust repellent properties according to FLABEG developed standard test Pendulum hardness test to DIN EN ISO 1522 Temperature change test, -40C / +93C (5 cycles, 120 h total) Humidity test (360 h total) UV stability tests

PROVEN QUALITY

Sand storm testing CASS salt spray test to

DIN EN 9227 NSS salt spray test to

DIN EN 9227 Thermal Cycling test,

+85C/85%r.H., -15C Dry heat test, +93C Agent resistance

Planned/ in progress: Quality Tests

light rain light rain, strong wind

heavy rain