Vueguard® 912 —— Anti-Weathering Water Clear Hardcoat (PMMA)

VUEGUARD® 912 coating treatment is available as Water-Clear (WC) for plastic sheets and molded articles, offering superior resistance to ultraviolet degradation and abrasion. While Vueguard 912® has been designed primarily for acrylic (polymethylmethacrylate) substrates, other plastics may benefit from its application.

Environmental Exposure

Unexposed Humidity (1) Weathering (2)
Light Transmittance (%) (3) 91 91
Haze (%) (4) 0.2 0.4 4-5
Adhesion (%) (5) 100 100 100
Yellowness Index Change (6) 0 0 2-3

 

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 2,000 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

Scratch/Abrasion Tests

Haze Change (4)
Uncoated Coated
Steel-Wool Scratch (7) 31.1 0.4
Taber Abrasion (8) 100 Cycles 26.2 3-4

 

7. Steel-Wool Scratch: Steel-wool rotary test representing severe scratching using a 1.25-square-inch #0000 steel-wool pad at 24 psi
for 100 rotations
8. Taber Abrasion: ASTM D-1044 (CS10F wheels with 500g load)

Chemical Resistance (9), (10)

Uncoated Coated
Gasoline L L
Toluene X S-M
Acetone X S
Ethanol L L
Trichloroethylene X S-M
5% Ammonia L L
10% Caustic Soda L L
50% Caustic Soda L L
10% Sulfuric Acid L L

 

9. 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.
10. 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

PCI Labs assumes no obligation or liability for any information furnished by it or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk. Users should be governed by their own tests, made under conditions representative of those to which the product will be subjected in actual service. Users assume all risks and responsibilities associated with the proper handling, use and disposal of the material.

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