Product information

tesa® HAF 8405

Heat activated film

Product description

tesa® HAF 8405 is a double-sided thermosetting brown adhesive film without backing, that is based on phenolic resin and nitrile rubber.

At room temperature tesa® HAF 8405 is not tacky. It is activated for pre-lamination by heat and becomes tacky at 90 °C. In its application, heat and pressure is applied over a certain period of time.

After curing, tesa® HAF 8405 reaches a very high bonding strength, high temperature stability and excellent chemical resistance. Because of the rubber components tesa® HAF 8405 remains flexible and elastic.

tesa® HAF 8405 is supplied with a strong paper liner and can easily be slit and die cut.

Main applications

It is suitable for bonding of all thermal resistant materials such as metal, glass, plastic, wood and textiles.

Technical properties

Backing material




Total thickness

1.18 mils

Type of adhesive

nitrile rubber / phenolic resin

Type of liner


Bonding strength

1740.45 lbs/in

Shelf life time < 5°C

18 months

Shelf life time < 15°C

15 months

Shelf life time < 25°C

12 months

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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