NewNew Products
Products

High-Reflectivity Pre-Coated Aluminum Sheet,
FUSCOAT CRYSTAL Series

INTRODUCTION

Highly-reflective materials represented by white-coloredfilm-laminated sheets and metallized films with mirror-likereflectivity are widely used for personal computers and TV
sets with liquid crystal display. Some of these materials,
however, do not fully satisfy the customer requirements
in terms of formability, ultraviolet ray resistance or heatresistance.
To meet such customer requirements, UniFus
Aluminum has developed high-reflectivity pre-coatedaluminum sheet, FUSCOAT CRYSTAL series.

2.

FEATURES

1) The product is highly reflective ensuring a reflectivityof 96 % at the maximum.
2) Furukawa Sky Group manufactures the productcovering everything from aluminum base material tocoating, thus realizing high quality and low cost.
3) Outstanding weatherability against ultraviolet ray
has been demonstrated at the test carried out by
the Japan Weathering Test Center, a foundation
supported by the Ministry of Economy, Trade andIndustry.
4) B e c a u s e o f i t s a i r s p a c e - f r e e c o a t i n g l a y e r
thinner than that of ordinary film-laminatedsheets, heat is conducted to the substrate ina short time. Superior heat resistance is also
assured thanks to the baking coating applied at200°C or higher.
5) The superior adhesiveness of the coating layer
with the substrate results in a higher degree offormability. In comparison to other materials with thesame thickness, the substrate is thicker because thecoating layer is thinner, bringing about higher rigidity
for the formed products.

3.

STRUCTURE OF COATING LAYER

lectivity coating
al conversion coatingm sheet
al conversion coatingFigure 14.

Structure of coating layer.

PROPERTIES

Figure 2 shows the spectral reflectivity of FUSCOATCRYSTAL series; Table 1 the evaluation test results ofweatherability against ultraviolet ray; and Figure 3 thethermal simulation results using a direct irradiation model.
Other general properties of FUSCOAT CRYSTAL seriessatisfactorily meet the standard specified in JIS H 4001,“Painted aluminium and aluminium alloy sheets andstrips.”
100

Total reflectivity (%)

1.

CRYSTAL S/SI95
CRYSTAL 95
90

CRYSTAL 9285400500600700

Wavelength (nm)Figure 25.

Spectral reflectivity.

APPLICATIONSFUSCOAT CRYSTAL series is best suited for reflectors
in which high brightness, high heat radiation andhigh formability are required, including those for LCD
monitors, LCD TV sets, advertisement boards with built-in
lighting and lighting fixtures for dressing glass.

Figure 1 shows the structure of the coating layer. After
conversion treatment is applied onto the aluminum barematerial as an undercoat, the front face is coated with ahigh-reflectivity paint.

Furukawa Review, No. 26

200456

High-Reflectivity Pre-Coated Aluminum Sheet, FUSCOAT CRYSTAL SeriesTable 1
FUSCOATCRYSTAL
Total thickness
0.5 mmResults of UV-resistance test. (Excerpt from thereport of the Choshi Exposure Laboratory, Japan
Weathering Test Center, supported by the Ministry ofEconomy, Trade and Industry)

SampleFUSCOATCRYSTAL S

Silverdeposited
sheet

Aluminum 0.307 mm+
PET resin (0.193 mm)

PET film(193 µm)

Irradiation
time (hr)Reflectivity Luminance(550 nm)(L*)

Chromaticness
Colorindex
difference
(a*)

(b*)

(∆ E)

Before test

96.1

96.5

–0.85

2.57

—196.1

96.5

–0.70

2.32

0.29

24

95.8

97.0–0.67

1.75

0.96

Before test

101.5

20.5

–0.81

–1.43

—

1101.2

21.3

–0.91

–1.54

0.81

24

82.0

20.9

–1.50

3.74

5.23

Before test

96.4

97.5

1.54

–3.41

—

195.6

97.1

–0.16

1.01

4.75

24

52.1

72.1

3.53

24.5

37.77

Notes
• Test equipment: EYE Super UV Tester, SUV-W131 from IWASAKI
ELECTRIC Co., Ltd.
• Irradiation condition: 100 mW/cm2 in irradiance

For more information, please contact:
Marketing Gr., Marketing Dept., UniFus Aluminum
Arca Central Bldg 20F, 2-1, Kinshi 1-chome, Sumida-ku,Tokyo, 130-0013
TEL: +81-3-5611-2398
FAX: +81-3-5611-2413
Figure 3

Results of thermal simulation using a direct
irradiation model.

Furukawa Review, No. 26

200457