Additional Info
- Recommended curing dosage: 3000mJ per cm² (UVA 365nm) on adhesive surface.
- Also possible to cure with 405nm LED.
tesa® 69301
25µm UV-curable optically clear tape
Product Features
- Very good ink step coverage
- Highest bonding strength (peel, tensile, shock)
- Excellent reliability & bubble suppression
Product description
tesa® 69301 is a highly transparent transfer tape produced under controlled clean room conditions and designed for optical clear lamination. It is a UV-curable tape which can be cured under UVA and UVV (<410nm) wavelength.
Product details and specifications
Product Features
- Very good ink step coverage
- Highest bonding strength (peel, tensile, shock)
- Excellent reliability & bubble suppression
- Can be cured through plastic and polarizers
Application Fields
- Optically clear lamination of displays to cover glass
- Optically clear lamination of plastics
- Suitable for thinnest design gaps
Product Construction
| Backing material | none |
|---|---|
| Colour | transparent |
| Colour of liner | transparent |
| Thickness of liner (easy release) | 50 µm |
| Thickness of liner (tight release) | 75 µm |
| Thickness of tape | 25 µm |
| Type of adhesive | acrylic |
| Type of liner | PET |
Product Construction
| Backing material | none |
|---|---|
| Colour | transparent |
| Colour of liner | transparent |
| Thickness of liner (easy release) | 50 µm |
| Thickness of liner (tight release) | 75 µm |
| Thickness of tape | 25 µm |
| Type of adhesive | acrylic |
| Type of liner | PET |
Properties / Performance Values
| Release of liner - inside | easy |
|---|---|
| Haze < | 0.5 % |
| Dielectric constant | 5.74 |
| Refractive index | 1.47 |
| Release of liner - outside | tight |
| Gap filling | 40 % |
| Transmittance (380 - 780nm) > | 99 % |
| Humidity resistance | very good |
| Ageing resistance (UV) | very good |
Properties / Performance Values
| Release of liner - inside | easy |
|---|---|
| Haze < | 0.5 % |
| Dielectric constant | 5.74 |
| Refractive index | 1.47 |
| Release of liner - outside | tight |
| Gap filling | 40 % |
| Transmittance (380 - 780nm) > | 99 % |
| Humidity resistance | very good |
| Ageing resistance (UV) | very good |
Adhesion to Values
| Adhesion to Glass (initial) | 3 N/cm |
|---|---|
| Adhesion to Glass (after UV curing) | 9.4 N/cm |
| Adhesion to PC (after UV curing) | 11.6 N/cm |
| Adhesion to PET (after UV curing) | 4.4 N/cm |
| Adhesion to PMMA (after UV curing) | 6.6 N/cm |
| Adhesion to Polarizer (after UV curing) | 7 N/cm |
Adhesion to Values
| Adhesion to Glass (initial) | 3 N/cm |
|---|---|
| Adhesion to Glass (after UV curing) | 9.4 N/cm |
| Adhesion to PC (after UV curing) | 11.6 N/cm |
| Adhesion to PET (after UV curing) | 4.4 N/cm |
| Adhesion to PMMA (after UV curing) | 6.6 N/cm |
| Adhesion to Polarizer (after UV curing) | 7 N/cm |
tesa® products prove their impressive quality day in, day out in demanding conditions and are regularly subjected to strict controls. All technical information and data above mentioned are provided to the best of our knowledge on the basis of our practical experience. They shall be considered as average values and are not appropriate for a specification. Therefore tesa SE can make no warranties, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose. The user is responsible for determining whether the tesa® product is fit for a particular purpose and suitable for the user’s method of application. If you are in any doubt, our technical staff will be glad to support you.
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