Metal Membrane Keypads for the Harshest Environments

ALMAX manufactures metal resistive membrane switches that are designed for rugged environments.  The stainless steel overlay and keys can be combined with a fully sealed switching unit.

Stainless steel membrane switch with sealed membrane switch housing

The metal membrane switching unit can be sealed against contamination including dust, water, sea water and oils.  It also provides resistance against detergents and chemicals.  If needed, the metal membrane switch can be designed to IP67 specifications to provide protection from even the harshest conditions.

Circuitry can be silver flex, copper flex, or rigid PCB.  The force to actuate keys can be designed to activate the switch while minimizing the risk of accidental actuation.

Possible Switch Configurations

Tactile Response

  • Metal domes
  • ALMAX High Life Tactile Actuators
  • Tactile rubber


  • Discrete LED
  • If Plastic Keys are used in place of metal – can backlight laser etched icons

Metal Graphics

  • Laser engraving
  • Color ink fill
  • Nameplate/logo integration

Metal Keypad Applications

  • Oil & Gas
  • Heavy Industrial
  • Commercial Restaurant
  • Automotive
  • Military
  • Commercial Facilities (Entry Keypads, Ticket Dispensers)
  • Impact Zones Including Vandalism
  • Hazardous Charge Prevention (Explosives)
  • High End Consumer Goods

Request Your Free Metal Key Sample

Call 888-211-6325

or email

to request a dead front membrane switch sample kit.

stainless steel membrane switch sample

Key Contacts





Easy Ordering

Your purchase order is always welcome.

For your convenience we take additional methods of payment.  Our sales team can answer questions about our order process and forms of payment.