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tesa HAF® 8400

tesa HAF 8400 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 easily be slit and die cut.

At room temperature tesa HAF 8400 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® 8400 reaches:

  • Very high bonding strength
  • High temperature resistance
  • Excellent chemical resistance
  • Bonds remain flexible and elastic

Main application

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

  • High-strength splicing (overlap splice)
  • Friction liners for clutches
  • Recommended for bonding of very rough materials due to its high thickness

Click for detail Technical Properties of tesa HAF 8400.