Its main properties are similar to NEMA grade XXXP (MIL-P-3115) material, and can be substituted for the latter in many applications.
FR-2 sheet with copper foil lamination on one or both sides is widely used to build low-end consumer electronics equipment.
It is not suitable for devices installed in vehicles, as continuous vibration can make cracks propagate, causing hairline fractures in copper circuit traces.
Cold punching and shearing are not recommended, as they leave a ragged edge and tend to cause cracking.
Adequate ventilation or respiration protection are mandatory during high-speed machining, as it gives off toxic vapors.