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tesa HAF® 9472
Reactive heat activated film tape
Product descriptiontesa HAF® 9472 is a reactive heat activated film based on phenolic resin and nitrile rubber. This amber double sided tape has no backing. It is protected by a strong paper liner and can be easily slit and die cut.
At room temperature tesa HAF® 9472 is not tacky. It is activated by heat and starts to become tacky at 90 °C for pre-lamination.
After curing tesa HAF® reaches:
- Reliable and ageing-resistant bonds
- Extremely high performance, even on small bonding areas
- Very low oozing ratio
- Suitable for long-term applications that are exposed to heavy stress
- Bonds remain flexible and elastic
- Resistance against oil and solvents
Main applicationstesa HAF® 9472 is especially recommended for bonding of thermal resistant materials such as metal, glass, plastic and textiles.
- Mounting of sensor plates
Shelf life time < 25°C
Type of adhesive
nitrile rubber / phenolic resin
Shelf life time < 15°C
Type of liner
Shelf life time < 5°C
During pre-lamination, the adhesive tape is laminated onto the first substrate. For this process we recommend a temperature between 90 °C and 140 °C for 3 - 10 s and a pressure of 0.5 - 2.5 bar. 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.
Remove the liner from the tape after pre-lamination. Position the second substrate and apply heat and pressure for the bonding. Following parameters can be regarded as a guideline:
- Temperature¹ 180 - 230 °C
- Pressure² >6 bar
- Time 3 min
3. Tempering (optional)
To reach maximum bonding strength the bonded parts can be tempered at 180 - 230 °C for 30 - 60 min.
¹ ‘Pre-lamination’ and ‘Bonding’ temperature refer to the data that is measured at the bond line.
² ‘Pre-lamination’ and ‘Bonding’ pressure refer to the force that is transformed from jig surface directly to the bonding area.
Bonding strength values were obtained under standard laboratory conditions. (Material: etched aluminum test specimen / bonding conditions: temperature = 180 °C; pressure = 10 bar; time = 7 sec).
To reach maximum bonding strength surfaces should be clean and dry. Storage conditions according to tesa HAF® shelf life concept.
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.