Sealing of soldered contacts

Sealing of soldered contacts on short-stroke keys of operating panels and keyboards

The DELO®-KATIOBOND® light-activated adhesives enable efficient production methods.

Adhesive requirements
  • Tight bonding with low tension and thermal resistance,
    in the case of typical soldering processes
  • Visible bonding
  • No chemical, electrical or mechanical influence on the control contacts
Kurzhubtaster
Adhesive curing with the
DELOLUX® 04 point lamp 		 

When bonding and sealing soldered contacts of tinned nickel alloy in a key housing of PBT, the adhesive must be reproducibly dispensed within 2 s. For curing the adhesive max. 3 cycles in
6 seconds are available.
The adhesive can be visually checked during dispensing and curing thanks to its vivid color.



Micrograph of an optimum bonding with DELO®-KATIOBOND® 4571red