WelQuick for multi-materials of automobile structural members

The automotive market faces increasing challenges such as reducing CO2 emissions, minimizing automobile body weight, reducing the number of parts, and improving safety. In approaching such challenges, metal joining in structural members is a substantial barrier. Currently, mainly mechanical fasteners and liquid adhesives are used, but there is demand for developing methods that join various materials yet achieve process reductions and energy savings.
To meet this requirement, we propose a bonding solution with WelQuick, which can bond dissimilar materials in a short time and improve adhesive strength.


This video (1 minute) shows how to use and benefit from WelQuick when bonding multi-material automotive structural members.


Examples of WelQuick applications for automobiles:Bumper reinforcement, battery cases, etc.

WelQuick simplifies the adhesion process

WelQuick substantially simplifies the joining process compared with mechanical fastening and liquid adhesives. Compared with liquid adhesives, these film adhesives shorten the coating process. Its stable chemical structure also eliminates the hassle of storage and the need to bond materials together immediately after film setup; therefore it provides a longer open time. Moreover, it works with localized and brief heating of the bonding area instead of the entire part, thus contributing to CO2 reduction in the bonding process.

WelQuick simplifies the adhesion process

WelQuick provides higher adhesion

WelQuick, a film adhesive, bonds surfaces together and thus exhibits higher surface rigidity than mechanical fastening or welding, which joins non-uniformly, such that it reduces the number of parts and contributes to lighter-weight components.

Impact resistance test

  Mechanical fastening Liquid adhesive WelQuick
Jointing Complicated Coating
Quick and convenient adhesion
Joint strength High-strength point joints High-strength surface joints High-strength surface joints
Required energy Requires more energy because welding needs high-temperature heating Requires more energy to heat all of the components Requires less energy because of low temperature and local heating
Electric corrosion Occurs because of electric potential difference between dissimilar materials Prevented
(depends on type of adhesive)
Prevented by the film‘s insulation
Component lightening Material cannot be made thinner Material can be made thinner because of high surface rigidity Material can be made thinner because of high surface rigidity
  • The data shown above are representative figures. They are not guaranteed values.

Need More Information?

Please refer to the technical leaflet for specific data about WelQuick as a structural adhesive for automobiles.

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