VueGuard® 930D — Super Hydrophilic Anti-Fog Coating
The VueGuard® 930D is a UV curable anti-fog coating, designed to survive thermoforming by virtue of its 18-hr stability at 140°C. This coating does not crack in either tension or compression. It retains high clarity and does not discolor. It survives multiple alcohol cleaning cycles and passes the EN-166 test.
Anti-Fog Coating Applications
The VueGuard® 930 D-AM offers both Anti-Fog and Anti-Microbial properties that inhibit the ability of microbes to grow and minimizes the spread of disease. The VueGuard® 930 PST is the recommended AF Post Surface Treatment used to clean, remove dirt, oils, and other contaminants while maintaining the anti-fog properties of the treated article for an exceptionally long time.
VueGuard® 930D Technical Data
Materials: UV-curable AF coating for PC, PMMA, PET, and other optical clear thermoplastic materials.
% Solids: Spray – 25%, Dip & Flow – 40%, Roll-to-Roll – 75%
UV Dosage Energy: 1200 mJ/cm²
UV-cure thermal exposure: 70–100°C increases coating durability and solvent rub resistance.
Masking: Mask AF-coated surface with paper or film without adhesives.
Fogging Test
| Test | Result |
|---|---|
| Hot Fog — Time to Fog Sample over 250ml water at 60°C | >30 Minutes |
| Cold Fog — Time to Fog Freezer at -10°C for 45 min, observed at 25°C | No Fogging |
| Cold Fog (Extended) Freezer at -10°C for 60 min, then hot fog test | >30 Minutes |
Mechanical Properties
| Property | Result |
|---|---|
| Adhesion (ASTM D-3359) | 100% |
| Scratch Resistance #0000 steel wool at 2.5 lbs for 5 revolutions | 2 psi |
| Pencil Hardness (ASTM D-3363) | 2B |
| Taber Abrasion ASTM D-1044, CS-10, 500g, 100 cycles | 23% |
| Bayer Ratio (ASTM F-735) | 1.5 |
Hot Water / High Temp Resistance
| Test | Untreated | Water Immersion | High Temp |
|---|---|---|---|
| Light Transmittance (%) | 100% | 100% | 100% |
| Haze | 0 | 0 | 0 |
| Yellowness Index | 0.4 | 0.7 | 0 |
| Adhesion | 100% | 100% | 100% |
Water Immersion: Coated sample immersed in boiling water for 30 min.
High Temperature: Coated sample tested after 5 hours at 100°C.
Cleaning Durability
50+ Windex® wash cycles — No Fog
Samples sprayed with Windex then wiped clean with a dry scratch-free rag. Anti-fog tested after each cycle.