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) |
Weathering (2) |
| Light Transmittance (%) (3) |
91 |
91 |
– |
| Haze (%) (4) |
0.4 |
0.5 |
1-2 (7) |
| Adhesion (%) (5) |
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) |
38.1 |
0.4 |
| Abrasion (9) 250 Cycles |
32.0 |
3-4 |
Chemical Resistance (8), (9)
|
Uncoated |
Coated |
| Gasoline |
X |
M |
| Toluene |
X |
S |
| Acetone |
X |
S |
| Trichloroethylene |
X |
S |
| 5% Ammonia |
S |
L |
| 10% Caustic Soda |
S |
L |
| 50% Caustic Soda |
X |
M |
8. 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.
9. 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
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