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How to choose the right tape for the car exterior?

Published by admin 2024-02-24

Global travel demand is up and the auto industry is booming. Growing vehicle demand has led to increased demand for parts.

As Oems become more electrified and intelligent in auto parts such as fingerprint sensors and advanced lighting features,

exterior trim will integrate more functions, but both conventional and smart trim will require a lot of tape to hold them in place.

 

Nowadays, auto parts manufacturers have more and more options for external adhesive solutions. It is not only a challenge to

select the right accessories to meet the installation requirements of the Oems, but also to ensure the optimal process efficiency.

 

 How to choose PE or acrylic foam tape correctly?

PE foam tape has been used in the automotive industry for many years and has excellent cold shock resistance below -40°C due

to its superior stability. Acrylic foam tape also performs well under the requirements of cold impact resistance of oems. Both materials

can be used as tape substrates to bond plastic parts and broaden the range of applications for overall properties

Performance of PE foam tape and acrylic foam tape in four key areas:

characteristic PE Foam Tape

Acrylic Foam Tape

Density 50-400kg/m³ 500-900kg/m³
Cold shock resistance

below -40℃

Better cold shock resistance

Below -40℃
Maximum stripping force at cohesive failure 20N/cm 60N/cm
Tolerance compensation for thermal expansion of parts

limited

Suitable for small parts only

yes

Suitable for all kinds of external decorative parts

 

How to choose the right acrylic foam tape

Make sure the tape is thick enough to compensate for thermal expansion

Thermal expansion affects different body parts and trim in different ways. Selecting acrylic foam tape of sufficient thickness is very

important for thermal expansion compensation of parts.

Effects of different temperatures on bonding of different material groups -- ABS plastics and steel, and PP and glass

Parts with length of 800mm (at room temperature) Length difference (mm)
Combination of materials expands at 90℃ Shrinkage at -40℃
ABS/ steel 3.42mm -2.93mm
PP/ glass 4.34mm -3.72mm

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