Technical Resources

Below you will find some resources for HMI (Human Machine Interface) products, including connectors, switches, LED's, Adhesive Tapes, ASTM standards, and component suppliers.


NICOMATIC - Connectors and Pins

NICOMATIC specializes in the development and manufacture of interconnect solutions and metal dome switching technology for all types of man/machine interfaces.



Panasonic - Tactile Switches

Panasonic's products are engineered to serve the needs of various industries such as home appliances, consumer electronics, communications, automotive and healthcare.



3M™ - Adhesive Transfer Tapes

3M™ adhesives are a popular choice for graphic attachment and membrane switch applications because it has excellent quality, consistency and durability.



Adhesive Transfer Tape Recommendations

  • 3M 467MP is the most commonly used rear adhesive on membrane switches. It is highly recommended for bonding to smooth metal and high surface energy plastics. It is UV resistant and has excellent high temperature and moisture/solvent resistance as well.
  • 3M 468MP is recommended for bonding to rougher surfaces.
  • 3M 300LSE series is recommended for bonding to low surface energy plastics such as polypropylene or powder coated paints. 3M 9672LE is recommended for textured plastic surfaces. 3M 9471 and 9472 are also commonly used adhesives from this series.

Current ASTM standards for the Membrane Switch Industry

Below you will find some technical resources for the current ASTM standards in the industry, such as test methods and standard practices.

  • F1570 Test Method for Determining the Tactile Ratio of a Membrane Switch
  • F1578 Practice for Contact Closure Cycling of a Membrane Switch
  • F1595 Practice for Visual Inspection of a Membrane Switch
  • F1596 Practice for Exposure of Membrane Switches to Temperature and Relative Humidity
  • F1597 Test Method for Determining the Actuation Force and Contact Force of a Membrane Switch
  • F1598 Test Method to Determine the Effects of Chemical/Solvent Exposure to a Membrane Switch/Graphic Overlay (Spot Test Method)
  • F1661 Test Method for Determining the Contact Bounce Time of a Membrane Switch
  • F1662 Test Method for Verifying the Specified Dielectric Withstand Voltage of a Membrane Switch
  • F1663 Test Method for Determining the Capacitance of a Membrane Switch
  • F1680 Test Method for Determining the Circuit Resistance of a Membrane Switch
  • F1681 Test Method for Determining the Current Carrying Capacity of a Conductor as Part of a Membrane Switch Circuit
  • F1682 Test Method for Determining the Travel of a Membrane Switch
  • F1683 Practice for Creasing and Bending a Membrane Switch, Membrane Switch Assembly or Membrane Switch Component
  • F1689 Test Method for Determining the Insulation Resistance of a Membrane Switch
  • F1762 Practice for Determining the Effects of Variation in Atmospheric Pressure on a Membrane Switch
  • F1812 Test Method for Determining the Effectiveness of Membrane Switch ESD Shielding
  • F1842 Test Method for Determining the Ink or Coating Adhesion on Plastic Substrates for Membrane Switch Applications
  • F1843 Practice for Determining the Specular Gloss of Flexible Substrates, both Printed and Unprinted
  • F1895 Practice for Submersion of a Membrane Switch
  • F1896 Test Method for Determining the Electrical Resistivity of a Printed Conductive Material
  • F1995 Test Method for Determining the Bond Strength of a Surface Mount Device (SMD) on a Membrane Switch by Applying a Shear Force
  • F1996 Test Method for Silver Migration for Membrane Switch Circuitry
  • F1997 Test Method for Determining the Sensitivity (Teasing) of a Tactile Membrane Switch
  • F2072 Practice for Hosedown of a Membrane Switch
  • F2073 Test Method for Non-Destructive Short Circuit Testing of a Membrane Switch
  • F2112 Terminology of a Membrane Switch
  • F2187 Test Method for Determining the Effect of Random Frequency Vibration on a Membrane Switch
  • F2188 Test Method for Determining the Effect of Variable Frequency Vibration on a Membrane Switch
  • F2114 Guide for ASTM Standard Test Methods, Standard Practices, and Typical Values of a Membrane Switch
  • F2357 Test Method for Determining the Abrasion Resistance of Inks and Coatings on Membrane Switches Using the Norman Tool RCA Abrader
  • F2359 Test Method for Determining Color of a Membrane Switch Backlit with a Diffuse Light Source
  • F2360 Test Method for Determining Luminance of a Membrane Switch Backlit with a Diffuse Light Source
  • F2866 Test Method for Flammability of a Membrane Switch in Defined Assembly

America's Oldest, A History of Innovation.  Learn More →
Our History

As the oldest production Printed Circuit Board Company in North America, perhaps in the world, the 60-year plus story of Epec is connected to the development of the PCB and the electronics industry.

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  • Epec Founded in 1952
  • IPC Founded in 1957
  • Epec Builds PCB for Apollo 11