Antimicrobial protected keyboards and keypads - hygenic for a lifetime

For hygenically demanding environments, such as medical and dental applications and the food industry, Hoffmann + Krippner offers a specially developed antimicrobial film for sustained protection of membrane switches against bacterial contamination.

This innovative membrane material combines antimicrobial properties with a hard, durable surface. The antimicrobial protection is directly integrated into the hard structured coating to ensure an even distribution of the antimicrobial agent across the entire overlay for the prducts service life.

When microorganisms come into contact with the membrane overlay, their cell walls are penetrated by the protective agents of the membrane. Their cell functions are interrupted which prevents further growth and cell reproduction.

You find our standard product with antimicrobial foil here.

The following bacteria were tested:

(Test method: AATCC Test Method 100)

  •  Staphyloccus aureus (MRSA)
  •  Escherichia coli 0157
  •  Listeria monocytogenes
  •  Pseudomonas aeruginosa
  •  Salmonella enteritidis
  •  Bacillus cereus
  •  Streptococcus faecalis
  •  Kelbsiella pneumoniae
  •  Aspergillus niger
  •  Penicillium purpurogenum
  •  Phoma violacea
  •  Saccharmyces cerevisae



Chemical resistance:


(Test method: DIN 42115)

  • Alcohol
  • Diluted acids 
  • Diluted alkalis 
  • Ester 
  •  Hydrocarbons 
  •  Ketones 
  •  Household cleaners