Applications of functional, electrically conductive adhesives in automotive engineering

Electrically conductive adhesives are widely used in automotive engineering in the assembly and contacting of semiconductors, sensors, heating elements or functional components such as cameras or mirrors. Epoxy-based systems have a high structural, thermal and chemical resistance and thus offer an interesting alternative to conventional joining techniques such as welding, soldering or mechanical joining. An advantage in addition to the lower process temperatures compared to soldering, is that the adhesive bonding connections generally show a higher flexibility and can therefore withstand vibrations that may occur during driving. Classical conductive adhesives are filled with silver particles, which provide the conductivity of the cross-linked polymer layer. The shape and particle size distribution of the fillers used have a decisive influence on processing and electrical properties. For less demanding applications in terms of electrical conductivity, e.g. shielding or for dissipating electrostatic charges, materials with more cost-effective fillers such as graphite are available.

Our electrically conductive adhesives are typically based on epoxy resins, which are available as premixed, frozen one-component systems or as two-component systems. To ensure their optimum conductivity, we advise you to cure these products at temperatures of at least 100 °C. Should you have temperature-sensitive substrates, Polytec PT has specifically formulated products that can be cured at moderate temperatures or even at room temperature.

Polytec PT offers a large range of conductive adhesives for a wide variety of application techniques. Starting from materials for manual application in prototype or sample production up to adapted products for fully automated assembly processes with adhesive application by dispensing, screen printing, jetting or stamping.

Benefit from our versatile expertise in electrically conductive adhesives. A contact, that conducts!