Materials for interconnection structures. Sectional specification set for unreinforced base materials, clad and unclad (intended for flexible printed boards). Adhesive coated flexible polyimide film. Adhesive coated flexible polyimide film|Acrylic resins, Materials specification, Flammability, Flexible cables, Reinforced materials, Dimensional changes, Adhesives, Designations, Coated materials, Electrical properties of materials, Dimensions, Printed-circuit bases, Thickness, Specification (approval), Printed circuits, Insulating coatings, Flow, Insulating films, Printed-circuit boards, Marking, Conversion, Polymers, Films (states of matter), Test specimens, Epoxy resins, Electrical insulating materials, Dimensional tolerances