HC Clear™ is a clear hard coating that can be applied to both acrylic and polycarbonate cover glass.
This solution provides high scratch and abrasion resistance, graffiti resistance, and improved
weather performance. It also has excellent optical quality and can be applied on one or both sides of the optical filter regardless of the base material.
Depending on the base material, HC Clear provides a scratch resistance of pencil hardness 4-8H.
HC Clear is a very versatile solution that can be applied to any kind of optical filter or display window that needs scratch resistance.
Below you can read the technical specifications of HC Clear when applied to PMMA.
Interested in HC Clear’s technical specifications on polycarbonate instead? Then click right here.
| Parameter | Test | Unit | Result |
|---|---|---|---|
| Refractive index | - | nd 20 | 1,429 |
| Transparency 380-780 nm D = 3mm | DIN 5036 | % | 92 |
| Vediation angle | DIN 52305 | Bg´ | <3 |
| Refractive power | DIN 52305 | dpt | <0,05 |
| Parameter | Test | Unit | Result |
|---|---|---|---|
| Bulk density | DIN EN ISO 1183 | g/cm³ | 1,19 |
| Water absorption 24 hours, 23° C | DIN EN ISO 62 | mg/kg | <30 |
| Tensile strength | DIN EN ISO 527 | MPa | 75 |
| Elongation at tear | DIN EN ISO 527 | % | 104,5 |
| Modulus of elasticity | DIN EN ISO 527 | MPa | 3300 |
| Impact resistance | DIN EN ISO 179 | kJ/m² | 12 |
| Abrasion resistance | ISO 9352 (Taber-process: 100 rotations, CS-10F, 500g force) | % haze | <4 |
| Layer thickness | - | µm | 4-8 |
| Adhesive properties 0,5 hour immersion period at 80°C | DIN EN ISO 2409 | GT | 0 |
| Adhesive properties 1 hour immersion period at 80°C | DIN EN ISO 2409 | GT | 0 |
| Adhesive properties 2 hour immersion period at 80°C | DIN EN ISO 2409 | GT | 0 |
| Parameter | Test | Unit | Result |
|---|---|---|---|
| Vicat diluting temperature VST/B 50 | DIN EN ISO 306 | °C | 115 |
| Constancy temperature HDT/A (1,8 N/mm²) | DIN EN ISO 75 | °C | 100 |
| Temperature of permanent use | DIN 53446 | °C | 80 |
| Linear coefficient of cubical thermal expansion (α) 0 - 50 °C | DIN 53752 | K⁻¹ | 70 x 10⁻⁶ |
| Heat conductibility (λ) | DIN 52612 | W/mK | 0,19 |
| Specific heat (c) | - | J/gK | 1,47 |
| Parameter | Test | Unit | Result |
|---|---|---|---|
| Specific volume resistivity | DIN VDE 0303 | Ωcm | 10¹⁵ |
| Dielectric strength | DIN EN 60243 | kV/mm | >30 |
| Substance | Result* |
|---|---|
| Acetone, 100% | Resistant |
| Ammonia, 25% | Resistant |
| Acetic Acid, 100% | Resistant |
| Gasoline mixture for MPAButyl acetate, 100% | Resistant |
| Citric acid, 95% | Not resistant |
| Dicholoromethane, 100% | Resistant |
| Diesel fuel, 100% | Not resistant |
| Ethanol, 100% | Resistant |
| Ethyl acetate, 100% | Resistant |
| Formaldehyde, 37% | Resistant |
| Milling Oil, 100% | Resistant |
| Glass cleaner, 100% | Resistant |
| Isopropanol, 100% | Resistant |
| Potassium hydroxide, 40% | Not resistant |
| Mlethyl ethyl ketone, 100% | Resistant |
| Sodium hydroxide, 30% | Not resistant |
| Nitro thinner, 100% | Resistant |
| Phosphoric acid, 85% | Not resistant |
| Nitric acid, 65% | Resistant |
| Hydrochloric acid, 32% | Resistant |
| Sulfuric acid, 98% | Resistant |
| Special benzine, 100% | Resistant |
| Toulene, 100% | Resistant |
| Water, 100% | Resistant |
| Parameter | Test | Result |
|---|---|---|
| Fire behavior | DIN 4102 | Fire classification B 2 |
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Information such as product specifications and technical data are not legally binding and are subject to change.
