tesa® HAF 8402

Heat activated film

Product description

tesa® HAF 8402 is a double-sided thermosetting brown adhesive film, without backing, based on phenolic resin and nitrile rubber.

At room temperature tesa® HAF 8402 is not tacky. It is activated for pre-lamination by heat and starts to become tacky at 90 °C. In a second application step heat and pressure is applied over a certain period of time.

After curing tesa® HAF 8402 reaches a very high bonding strength, high temperature stability and excellent chemical resistance. Because of the rubber components tesa® HAF 8402 remains flexible and elastic.

tesa® HAF 8402 is supplied with a strong paper liner and can easily be slit and die cut.

Product details and specifications

Application Fields

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

Backing material	none
Colour	amber
Total thickness	125 µm
Type of adhesive	nitrile rubber / phenolic resin
Type of liner	glassine

Bonding strength (push-out)	12 N/mm²
Bonding strength (dynamic shear)	12 N/mm²

Processing:

1. Pre-lamination:
tesa® HAF 8402 is laminated before curing. For this process we recommend a temperature between 90 °C and 110 °C.

2. Bonding:
The bonding conditions temperature, pressure and time depend on the application. Following parameters can be regarded as a guideline:

Splicing application:

Temperature: 120 - 200 °C
Pressure: > 2 bar
Time: 15 sec - 90 sec

Friction liners for clutches:

Temperature: 180 - 230 °C
Pressure: > 6 bar
Time: 5 min - 30 min

To reach maximum bonding strength surfaces should be clean and dry. Storage conditions according to tesa® HAF shelf life concept.

Note: Bonding strength values were obtained under standard laboratory conditions (Mean values). Value is guaranteed clearance limit checked with each production batch (Material: Etched aluminium test specimen / Bonding conditions: Temp. = 120 °C; p = 10 bar; t = 8 min)

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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Product information_tesa HAF® 08402_en-ZA 64.7 kB

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Name of product	tesa® HAF 8402	tesa® HAF 8414	tesa® HAF 8490	tesa® HAF 8401	tesa® HAF 58435	tesa® HAF 8410	tesa® HAF 8440 HS
Total thickness	125 µm		315 µm	200 µm	125 µm	60 µm	40 µm
Type of adhesive	nitrile rubber / phenolic resin	copolyamide	nitrile rubber / phenolic resin	nitrile rubber / phenolic resin	nitrile rubber / phenolic resin	nitrile rubber / phenolic resin	copolyamide
Backing material	none	none	cotton fabric	none	none	none	none
Colour	amber	translucent	amber	amber	black	amber

Last updated on 26 Aug 2026

tesa® HAF 8402

Product details and specifications

Application Fields

Additional Info

Contact us

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