Redefining Customer Service
Customer Support | Phone: 717-558-5975

Coating material (dry-film resist) applied to the printed circuit board via a lamination process to protect the board from solder or plating.

PCB Glossary

  • FR4

    The UL-designated rating for a laminate composed of glass and epoxy that meets a specific standard for fire-retardance. FR-4 is the most common dielectric material used in the construction of PCBs.