VueGuard® 911 anti-weathering water clear hardcoat 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.
Anti-Weathering Water Clear Hardcoat Technical Data
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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