Common Flex Circuit Material Stack-Up

Below you will find some examples of common material stack-ups for flex and rigid-flex circuit board construction. If you are looking for more information about flex circuit construction methods, we recommend seeing our technical article on the Latest Material and Construction Methods Provide the Highest Quality Rigid-Flex PCB's.

If you have any questions or concerns about your current flex or rigid-flex circuit design, please fill out our information request form and someone from our engineering team will get back to you.



1 Layer Flex PCB with Optional FR-4 Stiffeners and PSA

Material Stack-Up - 1 Layer Flex PCB with Optional FR-4 Stiffeners and PSA


2 Layer Flex Circuit with ZIF Contact Fingers

Material Stack-Up - 2 Layer Flex Circuit with ZIF Contact Fingers


4 Layer Rigid-Flex PCB (2 Flex Layers)

Material Stack-Up - 4 Layer Rigid-Flex PCB

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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