Additional Info
Technical recommendations:
tesa® HAF 8474 is not self adhesive. It is activated by heat and pressure over a certain interval. The following values are recommendations for machine parameters to start with.
1. Pre-lamination:
During pre-lamination, the adhesive tape is laminated onto the metal substrate. This step does not affect the shelf life time of the adhesive tape. Pre-laminated components can be stored over the same period of time as the adhesive tape.
Machine setting:
2. Bonding:
Remove the liner from tape after pre-lamination step. Place the plastic part onto the metal component. Apply sufficient temperature through the metal part while applying pressure for the bonding time to reach sufficient bonding strength.
Machine setting:
To achieve optimum performance a cooling step (while applying pressure) directly after the bonding step is recommended.
¹ ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured at the surface of heating mould.
² ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transformed from mould surface directly to the bonding area.
Storage conditions according to tesa® HAF shelf life concept.
Note: Bonding strength values (mean values) were obtained under standard laboratory conditions. (Material: AL & AL test specimen / Bonding conditions: Temperature = 180 °C; Pressure = 10 bar; Time = 7 sec).
tesa® HAF 8474 is not self adhesive. It is activated by heat and pressure over a certain interval. The following values are recommendations for machine parameters to start with.
1. Pre-lamination:
During pre-lamination, the adhesive tape is laminated onto the metal substrate. This step does not affect the shelf life time of the adhesive tape. Pre-laminated components can be stored over the same period of time as the adhesive tape.
Machine setting:
- Temperature¹ 90 – 120 °C
- Pressure² 2 – 6 bar
- Time 1,5 – 3,0 s
2. Bonding:
Remove the liner from tape after pre-lamination step. Place the plastic part onto the metal component. Apply sufficient temperature through the metal part while applying pressure for the bonding time to reach sufficient bonding strength.
Machine setting:
- Temperature¹ 180 – 220 °C
- Pressure² 2 – 10 bar
- Time 3,0 – 10,0 s
To achieve optimum performance a cooling step (while applying pressure) directly after the bonding step is recommended.
¹ ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured at the surface of heating mould.
² ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transformed from mould surface directly to the bonding area.
Storage conditions according to tesa® HAF shelf life concept.
Note: Bonding strength values (mean values) were obtained under standard laboratory conditions. (Material: AL & AL test specimen / Bonding conditions: Temperature = 180 °C; Pressure = 10 bar; Time = 7 sec).
