Pure Copper 110 Foil — Thin Copper Foil Rolls & Sheets

Pure copper 110 foil — also called thin copper foil, copper foil roll, copper foil sheet, or bare copper foil tape — is the thinnest flat-rolled form of 99.9% pure copper 110: a flexible, highly conductive foil that wraps, conforms, die-cuts, and solders cleanly. It is the material used for EMI and RFI shielding, grounding and conductive contacts, prototype circuits and transformer winding, battery and busbar connections, heat spreading, gaskets, stained-glass came, embossing, and fine metal crafts. It is supplied in continuous rolls for production or cut sheets and blanks for smaller projects across the United States.

Copper foil is the lightest way to add a conductive or shielding layer, and it can be slit to your required width or cut to your specified length or blank size in millimeters or inches. Thicker but still flexible material is supplied as copper sheet; the very thinnest foil begins at the 0.01 mm class.

What Is Pure Copper 110 Foil?

Pure copper 110 is commercial-grade 99.9% pure copper valued for high electrical and thermal conductivity, natural corrosion resistance, and excellent ductility. In foil form it is flat-rolled to the thinnest gauges in the copper range, below the standard sheet threshold, where the material becomes flexible enough to wrap, fold, and conform to curves. Even at foil thickness, it remains solid, bare copper that conducts, shields, and solders. US buyers search this material as “copper foil,” “pure copper foil,” “thin copper foil roll,” “copper foil sheet,” “EMI copper foil,” “copper foil for stained glass,” and “copper foil tape” (tape usually refers to foil with an adhesive backing).

Thickness, Gauges & Widths

Copper foil is selected by thickness, shown in millimeters, inches, and mils (thousandths of an inch), and by roll or sheet width. The five standard foil thicknesses are listed below; select the thickness variant, then choose roll or cut sheet and the width and length you need.

Thicker flexible material above the foil range is supplied as pure copper 110 sheet, and thin rigid plates are supplied as copper plate. Set live variants to the exact foil thicknesses and widths you stock.

Key Properties of Pure Copper 110 Foil

Why Choose Thin Copper Foil

• EMI and RFI shielding — thin copper foil wraps enclosures, cables, and panels to block electromagnetic and radio-frequency interference.
• Grounding and contacts — foil creates conductive paths, bonding strips, and grounding contacts in tight spaces.
• Rolls for production — continuous rolls suit wrapping, winding, taping, and die-cutting lines with minimal joins.
• Cut sheets for projects — flat foil sheets suit shims, prototype circuits, shielding panels, inlays, and stained-glass work.
• Slit to width — narrow foil strips and wide foil panels are produced from the same stock to your dimensions.
• Light weight — foil adds shielding and conductivity with negligible weight and thickness in compact assemblies.

How to Order Copper Foil

Common Applications

Industries That Use Copper Foil

• Electronics & telecommunications — EMI/RFI shielding, enclosures, cable wraps, and prototype circuits.
• Electrical & power — grounding, conductive contacts, busbar shims, transformer and coil winding, and battery links.
• Automotive & aerospace — lightweight shielding wraps, harness protection, and thermal and conductive interfaces.
• Medical & instrumentation — shielding in sensitive devices, conductive pads, and laboratory components.
• Stained glass & decorative craft — copper foil came, soldering foil, embossing, and jewelry making.
• Converting & die-cutting — custom slitting, die-cut shims, labels, and gasket components.

Working & Fabrication Notes

Pure copper 110 foil cuts with scissors, knives, steel rules, or die-cutting tooling and slits cleanly to narrow widths. It folds and wraps around edges and corners, accepts conductive adhesives where assemblies require them, and solders quickly with standard solder and flux. For shielding, overlapping foil layers and continuous contact with the grounded surface create the most effective enclosure. Bare foil can be left natural, polished, or allowed to develop a patina; it should be stored flat or on the roll and kept clean before forming or soldering.

Foil vs Sheet

• Foil is the thinnest, most flexible flat-rolled copper, used to wrap, conform, shield, laminate, and die-cut in thin gauges.
• Sheet is thin but self-supporting, used for panels, flashing, shims, and formed parts that need to hold their shape.
• Plate is rigid heavy stock for busbars, electrodes, thermal plates, and machined components.

Custom Slit Widths, Cut Sheets & Blanks

Pure copper 110 foil is supplied in standard rolls or slit to a specified width and cut to a specified length or blank size, in millimeters or inches. Repeated identical foil strips, die-cut blanks, gaskets, shielding panels, and craft sheets can be produced from the same thickness so they arrive ready to apply or convert. Thicknesses, widths, or forms outside the standard range, or parts requiring additional processing, are handled as custom orders, with handling time extended according to the difficulty and complexity of the work.

Shipping & Delivery

Pure Copper 110 Foil FAQ