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When your project demands exact conductivity and zero compromise on purity, standard copper tape simply falls short. Engineers, hobbyists, and makers who work with EMI shielding, PCB fabrication, battery tab welding, or decorative metalwork need a copper foil strip they can trust down to the micron. This 99.99% pure copper Cu sheet foil plate strip is available in thicknesses from 0.01 mm to 1 mm and widths of 15 mm, 100 mm, or 200 mm — giving you the precise cross-section your application requires.
Each strip is composed of 99.99% electrolytic-grade copper (Cu), delivering exceptional electrical conductivity (typically ≥58 MS/m) and thermal transfer. Thickness options span 0.01 mm–1 mm (approximately 0.0004"–0.039") and widths cover 15 mm (≈0.59"), 100 mm (≈3.94"), and 200 mm (≈7.87"). Each piece is supplied in 1-meter lengths, with multi-pack options of 1, 3, or 5 pieces per order.
Typical use cases include EMI/RFI shielding tape for electronics enclosures, thin copper shim stock for precision gap-filling and heat-sink mounting, electrode and battery tab material for DIY lithium cell packs, decorative inlay work in woodworking and resin casting, and grounding straps in electrical and RF installations.
| Material | 99.99% Electrolytic Copper (Cu) |
|---|---|
| Thickness Range | 0.01 mm – 1 mm (0.0004" – 0.039") |
| Width Options | 15 mm (0.59"), 100 mm (3.94"), 200 mm (7.87") |
| Length per Piece | 1 m (approx. 39.4") |
| Purity | ≥ 99.99% Cu |
| Electrical Conductivity | Typically ≥ 58 MS/m (IACS ≥ 100%) |
| Temper | Soft / Annealed |
| Surface Finish | Smooth, bright rolled |
| Quantity per Order | 1 Pcs / 3 Pcs / 5 Pcs (see variant options) |
| Weight | See variant options |
| Color | Copper / Rose-gold metallic |
For EMI/RFI shielding and flexible wrapping applications, thicknesses of 0.01 mm–0.05 mm work well. For heat-spreader shims and gap-filling between components, 0.1 mm–0.3 mm is typical. For structural tabs, bus bars, or decorative inlay work requiring rigidity, 0.5 mm–1 mm is recommended. If you are unsure, start with a thinner gauge — it is easier to layer thin foil than to thin a thick strip.
The strips are supplied in a soft/annealed temper, which means they are ductile and flexible rather than brittle. Thinner gauges (0.01 mm–0.05 mm) are delicate and should be handled with care to avoid creasing, while gauges of 0.1 mm and above are robust enough for repeated bending and mechanical fastening without tearing under normal handling.
Copper naturally forms a thin oxide patina when exposed to air and moisture, which can darken the surface to a brown or greenish tone over time. This patina does not significantly affect electrical conductivity in most applications. For applications requiring a bright finish, store unused strips in a sealed bag and clean the surface with a mild acid solution (e.g., diluted citric acid) before use. In sealed electronics enclosures, tarnishing is minimal.
Yes. 99.99% pure copper accepts standard rosin-core and no-clean solder readily. For best results, lightly abrade or clean the surface before soldering to remove any oxide layer, then apply flux. The soft temper also makes it easy to tin the surface for reliable electrical joints in PCB repair, battery tab welding, and grounding strap applications.
The 15 mm width is ideal for narrow grounding straps, battery tab connections, and tight cable wrapping. The 100 mm width suits general-purpose shielding panels, heat spreaders, and medium-scale decorative inlay. The 200 mm width is best for large EMI shielding panels, wide heat-sink interfaces, and sheet-metal fabrication projects where a broad copper surface is needed. You can also cut any width down to size with scissors or a straight-edge cutter.
Yes, pure copper foil is widely used for battery tab connections in DIY lithium-ion and LiFePO4 packs due to its low resistance and excellent current-carrying capacity. For spot-welding applications, thicknesses of 0.1 mm–0.2 mm are most common. Thicker strips (0.3 mm+) may require higher welding energy. Always verify your spot welder's specifications against the strip thickness before welding.
Each piece is 1 meter long. Measure the total length of copper strip your project requires, then divide by 1 m to determine the number of pieces. For example, a 2.5 m run requires 3 pieces. Use the quantity selector (1 Pcs, 3 Pcs, or 5 Pcs) to order the right amount in a single transaction and save on per-unit cost.
