TYPE I – Engineering Grade
Technical Data
A. Physical
Properties of Nikkalite® EG
Sheeting
Property |
Test
Method |
Results |
| Average
Thickness |
Micrometer |
0.175mm |
| Average
Gloss |
Glossmeter
85° |
95° |
| Tensile
Strength |
Instron
at 30cm (12"/Minute) |
5.0kg
(11lb) |
| Elongation |
Instron
at 30cm (12"/Minute) |
24% |
B. Physical
properties when bonded to aluminum panels:
The data in the table
below are based on tests conducted on EG sheeting applied to
acid-etched aluminum panels and conditioned for 48 hours or more at a
room temperature of 23°C (74°F).
Property |
Test
Method |
Results |
| Humidity
Resistance |
100%
Humidity at 81° F for 72 hours |
No
Effect |
| Cold
Resistance |
72
hours at -70° F |
No
Effect |
| Heat
Resistance |
72
hours at 160° F |
0.4mm
Maximum
Shrinkage from edge of panel |
| Adhesion |
180°
Pullback at 12"/minute at 74° F |
Minimum
2kg/2.5cm(4.4ppl) |
| 90°
Peeling Test |
0.8kg
(1.8lb) Weight Suspended for 5 minutes |
3mm
(7/64") Maximum Peeling |
| Accelerated
Weathering |
Sunshine
Weather-O-Meter for 2000 hours |
--
No Visible: Cracks, Bubbles, Peeling
-- Less than 0.2 mm
(0.008") Shrinkage
-- Reflectivity up to 50 % greater
than all known required minimum
-- No Significant color
changes |
| Salt
Spray Effects |
3%
Concentration at 95° F for 500 hours |
No
Effect |
C.
Chemical Resistance
Property |
Test
Method |
Results |
| Water |
1
Month |
No
Effect |
| 10%
Hydrochloric Acid Solution |
10
Minutes |
No
Effect |
| 10%
Sodium Chloride Solution |
1
Month |
No
Effect |
| Methyl
Alcohol |
10
Minutes |
No
Effect |
| Kerosene |
10
Minutes |
No
Effect |
| Turpentine |
1
Minute |
No
Effect |
| Xylol |
1
Minute |
No
Effect |
Durability
The
most important properties of retro-reflective sheeting are
reflectivity, color, and durability. Among these, durability may be
the most important, so special attention was directed toward the
selection and use of raw materials and production technology that
would render maximum durability. Continuous efforts are being made
to attain even greater durability for all Nikkalite® products. From tests conducted, it has been determined
that Nikkalite® EG sheeting applied as recommended can be expected to meet the
durability standards given below without any clear coating. Under
certain weathering conditions, small hair cracks may appear in the
sheeting, but such cracks do not significantly reduce the day or
night performance of the signs.
Product |
Length
of Durability |
| 8112P
(White) |
7
Years |
| 8104P
(Yellow) |
7
Years |
| 8105P (Red) |
7
Years |
| 8106P
(Blue) |
7
Years |
| 8177P
(Orange) |
6
Years |
| 8108P (Green) |
7
Years |
| 8109P
(Brown) |
7
Years |
Note:
The data above are based on the tests conducted in the United States
as well as in Japan. These tests included outdoor exposure and
Emmaqua* tests in Phoenix, Arizona, outdoor exposure in Miami,
Florida, and Sunshine (carbon arc) weather-o-meter tests. It was
found that durability is affected by the type of substrate, surface
treatment of the substrate, exposure conditions, and types of
maintenance.
* Emmaqua
is an equatorial mount with mirrors for accelerated weathering, which
includes spraying distilled water on the test specimen at one hour
intervals during daylight. This type of test is conducted at DSET
LABORATORIES Inc. of Phoenix, Arizona, USA.
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