Additional Info
Adhesion properties:
Peel adhesion to polyester fabric: 7 N/cm
Technical recommendations:
tesa® LTT 8741 is not self-adhesive. It is activated by heat and pressure over a certain interval. The following values are recommendations for bond line parameters to start with.
1) Pre-lamination
During pre-lamination, laminate the film onto the first component.
Setting:
Remove the liner from the film after the pre-lamination step. Position the second component. Apply temperature and pressure for the bonding time to reach sufficient bonding strength.
Setting:
Short cycle times can be achieved at 110 °C bond line temperature. For activation at lower temperatures, increase the heat-press time or combine a short heat-press step with oven curing.
Peel adhesion values were obtained under standard laboratory conditions (reinforcement backing 23 µm PET; bonding conditions: temperature = 90 °C; pressure = 5 bar; time = 120 sec).
To reach maximum bonding strength, surfaces should be clean and dry. Allow at least 1-2 hours dwell-time after bonding before performance testing. Final bonding strength will be reached after 24 hours.
¹ ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured in the bond line. ² ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transferred from jig surface directly to the bonding area.
Peel adhesion to polyester fabric: 7 N/cm
Technical recommendations:
tesa® LTT 8741 is not self-adhesive. It is activated by heat and pressure over a certain interval. The following values are recommendations for bond line parameters to start with.
1) Pre-lamination
During pre-lamination, laminate the film onto the first component.
Setting:
- Temperature¹ 60 – 90 °C
- Pressure² 1 – 5 bar
- Time 5 – 20 s
Remove the liner from the film after the pre-lamination step. Position the second component. Apply temperature and pressure for the bonding time to reach sufficient bonding strength.
Setting:
- Temperature¹ 80 – 120 °C
- Pressure² 1 – 5 bar
- Time 10 – 480 s
Short cycle times can be achieved at 110 °C bond line temperature. For activation at lower temperatures, increase the heat-press time or combine a short heat-press step with oven curing.
Peel adhesion values were obtained under standard laboratory conditions (reinforcement backing 23 µm PET; bonding conditions: temperature = 90 °C; pressure = 5 bar; time = 120 sec).
To reach maximum bonding strength, surfaces should be clean and dry. Allow at least 1-2 hours dwell-time after bonding before performance testing. Final bonding strength will be reached after 24 hours.
¹ ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured in the bond line. ² ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transferred from jig surface directly to the bonding area.
