Additional Info
UV curing dosage suggestion
- Above 1000mj per sq.cm (UVA 365nm) dosage on adhesive surface
tesa® 69901 Optically Clear Adhesive
25 µm UV-curable optically clear tape for curved design
Product Features
- High transmittance and low haze
- Excellent temperature, humidity and UV-resistance
- Low UV curing dosage
Product description
tesa® 69901 is a highly transparent transfer tape produced under controlled clean room conditions and designed for optically clear lamination for rigid or flexible substrates with curved designs. It is post UV curable tape which could be cured under UVA and UVV (<410nm) wavelength.
Product details and specifications
Product Features
- High transmittance and low haze
- Excellent temperature, humidity and UV-resistance
- Low UV curing dosage
- Excellent edge bubble suppression
Application Fields
- Optically clear lamination of curved cover designs
- Optically clear lamination of plastic cover
| Backing material | none |
|---|---|
| Color | 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 film |
| Refractive index | 1.48 |
|---|---|
| Humidity resistance | very good |
| Haze < | 0.1 % |
| Ageing resistance (UV) | very good |
| Tack | low |
| Transmittance (380 - 780nm) > | 99 % |
| Adhesion to Glass (initial) | 8.5 N/cm |
|---|---|
| Adhesion to Glass (after UV curing) | 7.4 N/cm |
| Adhesion to PC (initial) | 8.6 N/cm |
| Adhesion to PC (after UV curing) | 9 N/cm |
| Adhesion to PET (initial) | 4.7 N/cm |
| Adhesion to PET (after UV curing) | 4.5 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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Last updated on 16 Apr 2024