Vueguard® 911 as Water-Clear (WC) for plastic sheets and molded articles, offering superior resistance to ultraviolet degradation and abrasion. While Vueguard® 911 has been designed primarily for polycarbonate substrates, other plastics may benefit from its application.
Environmental Exposure
|
|
Unexposed
|
Humidity (1)
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Weathering (2)
|
|
Light Transmittance (%) (3)
|
91
|
91
|
0
|
|
Haze (%) (3)
|
0.4
|
0.5
|
1-2 (7)
|
|
Adhesion (%) (3)
|
100
|
100
|
100
|
|
Yellowness Index Change (6)
|
0
|
0
|
3-4 (7)
|
1. Humidity: 120 hours @ 52°C and 100% RH (ASTM D-2247)
2. Weathering: ASTM G-53 (cycle of 8 hrs UV @ 70°C and 4 hrs condensing humidity @ 50°C for 2,500 hrs using Q-Panel QUV test equipment)
3. Light Transmittance: ASTM D-1003
4. Haze: ASTM D-1003
5. Adhesion: ASTM D-3359
6. Yellowness Index: ASTM D-1925
7. After 2.500 hours of QUV exposure start of color change of the polycarbonate substrate
Scratch/Abrasion Tests
|
Haze Change (3)
|
|
|
Uncoated
|
Coated
|
|
Steel-Wool Scratch (8)
|
28.1
|
0.4
|
|
Taber Abrasion (9) 250 Cycles
|
32.0
|
3-4
|
Chemical Resistance (8), (9)
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|
Uncoated
|
Coated
|
|
Gasoline
|
X
|
M
|
|
Toluene
|
X
|
S
|
|
Acetone
|
X
|
S
|
|
Ethanol
|
L
|
L
|
|
Trichloroethylene
|
X
|
S
|
|
5% Ammonia
|
S
|
L
|
|
10% Caustic Soda
|
S
|
L
|
|
50% Caustic Soda
|
X
|
M
|
|
10% Sulfuric Acid
|
L
|
L
|
10. Chemical Resistance: Similar to ASTM D-1308 but more severe. Evaporation minimized through continuous contact with chemical by means of a pad in the mouth of an inverted bottle placed on the specimen.
11. L—Long-term contact, greater than 24 hours
M—Medium-term contact, up to 8 hours
S—Short Term contact, up to 1 hour
X—Immediate attack: do not use
