Electronics, HAF

Product information

tesa® HAF 8474

Heat Activated Film
Solutions for the Consumer Electronics Industry



Product description

tesa® HAF 8474 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 8474 is free of halogen and compliant with current ROHS standards.

At room temperature tesa® HAF 8474 is not tacky. It is activated by heat and pressure during defined intervals.

tesa® HAF 8474 enables extremely strong and ageing-resistant bonds between different materials.

tesa® HAF 8474 features especially:

  • Excellent conformability for flat and narrow substrate surfaces
  • Produces very low oozing ratio
  • Reliable and ageing-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 8474 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 window frames and front covers of mobile phone housings
  • Constructive bonding inside handhelds
  • Multi media card applications

Technical properties

Backing material

none

Color

amber

Total thickness

100 µm

Type of adhesive

nitrile rubber / phenolic resin

Type of liner

glassine

Bonding strength

7 N/mm²

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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