tesa-electronics-double-sided-foam-tape-black-open-cell-foam-with-pet-backing

tesa 66440

490 μm d/s low Dk PU foam tape

  • All in one solution provided
  • Very low compression rebound force at Z direction
  • Quick rebounding
  • Low Dk at different frequency

Product description

tesa® 66440 is a double sided black PU foam tape with PET reinforcement. It consists of a super soft and compressible PU foam combined with high performance adhesive.

Application Fields

  • Low Dk property required application including FPC mounting
  • Cushioning and gap filling mounting application

Product Construction

Elongation at break 140 %
Type of liner PET
Backing material PU foam
Color of liner transparent
Tensile strength 95 N/cm
Total thickness 490 µm
Thickness of liner 50 µm
Color black

Properties / Performance Values

Static shear resistance at 23°C good
Static shear resistance at 40°C good

Adhesion to Values

Adhesion to Steel (initial) 1.6 N/cm
Adhesion to PC (after 14 days) 1.6 N/cm
Adhesion to Steel (covered side, after 14 days) 9 N/cm
Adhesion to PC (covered side, after 14 days) 9 N/cm
Adhesion to Steel (covered side, initial) 9 N/cm
Adhesion to PC (covered side, initial) 8 N/cm
Adhesion to Steel (initial) 1.6 N/cm
Adhesion to PC (initial) 1.4 N/cm
Adhesion to Steel (after 14 days) 1.6 N/cm
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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