58708

Technical recommendations:
tesa® XPU 58708 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.
• Pre-lamination
During pre-lamination, laminate the adhesive tape onto the first component.
Setting:
Temperature¹ 55-65 °C
Pressure² 3 bar
Time 5 – 20 s
Short-time exposure to 65 °C bond line temperature during pre-lamination does not affect the final bonding potential.
2. Bonding
Remove the liner from tape after the pre-lamination step.Position the second component.
Apply temperature and pressure for the bonding time to reach sufficient bonding strength.
2.1. PC/PC:Setting:
• Temperature¹ 80 – 140 °C
• Pressure² 5 bar
• Time 10 – 120 s
2.2. AL/PC:Setting:
• Temperature¹ 110 – 190 °C
• Pressure² 5 bar
• Time 20 – 120 s
Short cycle times can be achieved at high bond line temperatures. For activation at low temperatures, increase the heat-press time. 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. Bonding strength values were obtained under standard laboratory conditions. PC/PC: bonding conditions: temperature = 110 °C
(120 °C jig); pressure = 5 bar; time = 60 sec Storage: tesa® recommends storage in original packaging in cool and dry conditions.
• ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured in the bond line.

• ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transferred from jig surface directly to the bonding area.