ARclear® 42020
Product Applications
The typical use for this product is for bonding of flexible-to-flexible or flexible-to-rigid optical components such as backlights, polarizers, filters, retarders and diffusers, and holographic, anti-reflective and hard-coated films used in projection screens, touch screens, LCDs and flat panel displays.
Features and Benefits
Product Construction
| Typical Values* | Description | |
|---|---|---|
| Liner thickness | 2.0 mil | 51 μm | Clear PET easy release liner |
| Adhesive thickness | 2.0 mil | 51 μm | Silicone optically clear adhesive |
| Liner thickness | 4.0 mil | 102 μm | Clear PET tight release liner |
| Total thickness | 2.0 mil | 51 μm | (Excluding liner) |
*All stated values are nominal and should only be used as a guide for selection. They are not specifications.
Technical Properties
| Attribute* | Typical Values* | Test Method* |
|---|---|---|
| Peel adhesion on glass (180°, 12 in/min, 1 h dwell) |
70 oz/in | 19 N/25.4 mm | ASTM D3330 |
| Release of easy liner (180°, 300 in/min) |
15 g/2 in | ASTM D5375 |
| Release of tight liner (180°, 300 in/min) |
25 g/2 in | ASTM D5375 |
| Refractive index | 1.41 | ASTM D542 |
| Optical properties | Transmission: 99.7% Haze: 0.3% Clarity: 100% |
ASTM D1003 |
| Color (CIE94, D65 illuminant, 10°) |
L*: 99.9 a*: 0.01 b*: 0.16 |
ASTM E1331 |
| Yellowness index | 0.12 | ASTM E313 |
| Recommended storage of unconverted product | 70°F ± 20°F | 21°C ± 11°C 50% ± 20% RH | 50% ± 20% RH |
|
| Shelf life of unconverted product | Not to exceed one year from date of manufacture |
*All stated values are nominal and should only be used as a guide for selection. They are not specifications.
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