Product information

tesa® HAF 8478

Heat Activated Film
Solutions for the Consumer Electronics Industry

Product description

tesa® HAF 8478 is a thermosetting film based on phenolic resin and nitrile rubber. This brown double-sided tape has no backing. It is protected by a strong paper liner.

tesa® HAF 8478 is halogen-free and compliant with current ROHS standards.

At room temperature tesa® HAF 8478 is not tacky. It is activated by heat and pressure during defined intervals.

tesa® HAF 8478 enables extremely strong and age-resistant bonds between different materials, especially on porous substrates.

tesa® HAF 8478 features:

  • Excellent conformability for porous and curved substrate surfaces
  • Produces low oozing ratio
  • Reliable and age-resistant bonds between plastic and metal surfaces, even on very small bonding areas
  • Suitable for long-term applications that are exposed to heavy stress
  • Bonds remain elastic

Main applications

tesa® HAF 8478 is especially recommended for bonding of metal components to various plastic or metal surfaces, e.g. SUS or AL to PMMA, PC or ABS:

  • Bonding of frame to mobile phone housing
  • Nameplate bonding for handheld devices

Technical properties

Backing material




Total thickness

7.87 mils

Type of adhesive

nitrile rubber / phenolic resin

Type of liner


Bonding strength

1015.26 lbs/in

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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