Dirt-repelling overlays - possible with nanotechnology

Membrane switches by Hoffmann + Krippner have already been engineered to be protected against any kind of contamination and mechanical damage.

The front membrane of every Hoffmann + Krippner keyboard is printed from the back side of the foil. The upper layer of the membrane keyboard, with its sandwich contruction, offers effective protections and the overlay can be easily cleaned and disinfected.

Our R& D department keeps up to date with basic research regarding developments in nanotechnology and closely cooperates with research institutes. Talk to us about possible applications that are specifically geared to your requirements.


  • have access to research institutions in other European countries
  • stay up to date with developments in materials science
  • have a generously equipped testing laboratory