Electronics, Foam, Black, Double-sided
Product information

tesa ® 66985

250μm d/s black chemical resistant PE foam tape

Product description

tesa ® 66985 is a black double-sided tape consisting of a shock absorbing PE-foam backing equipped with chemical resistance adhesive.

tesa ® 66985 features:
  • Excellent chemical resistance
  • Outstanding shock performance
  • Good rework ability
  • Waterproofness

Main applications

  • Smart Phone & Feature Phone: Lens mounting & touch panel mounting
  • Tablet & Touch laptop: Lens mounting & touch panel mounting
  • Smart watch: Lens mounting & touch panel mounting
  • Smart TV: Lens mounting & frame mounting
  • Battery mounting

Technical properties

Backing material

PE foam



Total thickness

250 µm

Type of adhesive

tackified acrylic

Elongation at break

220 %

Tensile strength

10.7 N/cm

Adhesion properties

Adhesion to ABS (after 14 days)

13.4 N/cm

Adhesion to ABS (initial)

7.2 N/cm

Adhesion to Glass (after 14 days)

8.2 N/cm

Adhesion to Glass (initial)

8 N/cm

Adhesion to PC (after 14 days)

15.2 N/cm

Adhesion to PC (initial)

8.5 N/cm

Adhesion to PMMA (after 14 days)

13.4 N/cm

Adhesion to PMMA (initial)

8.5 N/cm

Adhesion to Steel (after 14 days)

7.2 N/cm

Adhesion to Steel (initial)

6.8 N/cm

Rating properties

Ageing resistance (UV)


Humidity resistance


Static shear resistance at 23°C


Static shear resistance at 40°C


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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