Warning label for automotive wireless charger cover plates

Jarlen has launched a warning label for automotive wireless charger cover plates, specifically engineered to adhere reliably under silicone coatings—delivering strong adhesion during use yet leaving no residue upon removal. The label also withstands high-temperature baking and exhibits excellent resistance to aging and abrasion.

Core Challenge:

The substrate is a low surface energy (LSE) material—specifically, a cover plate coated with silicone, which inherently exhibits extremely low surface energy. This makes it exceptionally difficult for conventional pressure-sensitive adhesives to properly wet and bond to the surface, often resulting in delamination or detachment.

In response to customer requirements, Jarlen employed an adhesive specifically engineered for low surface energy (LSE) materials, ensuring robust adhesion even on surfaces coated with silicone or treated with tactile/soft-touch liquids. Combined with a high-temperature-resistant label substrate and durable, chemical-resistant inks, this label successfully passed:

Initial adhesion testing
Post-bake adhesion testing (after high-temperature curing)
Aging resistance testing
Abrasion resistance testing
Chemical resistance testing
The solution has been fully validated by the customer and is now in successful mass procurement.