FR4
A familiar glass/epoxy laminate designation whose offered grade and specification need exact identification.
Also called: FR-4, FR-4
Material family: Electrical and electronic materials
Where it matters
PCB substrate, laminate and reinforcement qualification
Testing and verification
The designation alone does not establish high-speed performance or equipment approval.
Related guides
Related products and materials
General information for preliminary evaluation; not independently reviewed or certified. Confirm grades, standards and suitability with the manufacturer for your application. Interpret within the exact material, grade and test method.