Pure Copper Wire Bare Uncoated Assorted Sizes Ø0.2mm-6mm Round Solid Copper Wire

For most wire-wrapping and bead-weaving work, diameters between 0.3mm and 0.8mm (approximately AWG 28–20) offer a good balance of flexibility and structural hold. Finer gauges (0.2mm–0.4mm) are suited to delicate weaving and coiling around small stones, while 0.6mm–1mm works well for structural frame elements that need to hold their shape after forming.

Bare copper is the standard material for grounding conductors in many electrical codes. For grounding use, select a diameter appropriate to the current-carrying requirement specified by your local code (e.g., NEC in the US). Heavier gauges such as 3.5mm–6mm are typically used for main grounding electrodes and bonding conductors. Always consult a licensed electrician and verify compliance with local regulations before installation.

Yes — uncoated copper naturally oxidizes when exposed to air and moisture, developing a darker patina over time. For electrical grounding applications this is generally acceptable and does not significantly impair conductivity at connection points when properly terminated. For decorative or jewelry use, the patina can be part of the aesthetic, or you can apply a clear lacquer or wax coating after forming to slow oxidation. Store unused wire in a sealed bag to minimize tarnishing.

Copper wire is a traditional choice for bonsai training because it holds its shape firmly after bending and grips bark without slipping. Diameters between 1mm and 3mm are most commonly used for bonsai, with thicker gauges for primary branches and thinner gauges for secondary and tertiary branches. The rule of thumb is to use wire approximately one-third the diameter of the branch being trained.

Yes. Because the surface is bare copper with no coating or plating to burn off, it accepts solder readily with standard rosin-core or no-clean flux solder. Clean the wire surface with fine abrasive or flux before soldering if the wire has developed surface oxidation from storage. This makes it suitable for coil winding, antenna construction, and electronics prototyping where soldered joints are needed.

The 1M length is practical for single jewelry pieces, short grounding jumpers, or testing a new gauge before committing to more. The 5M length suits small craft projects, bonsai work on a few trees, or a batch of wire-wrapped pendants. The 10M length offers the best value per meter for ongoing projects, coil winding, or when you regularly use a specific gauge and want to minimize reordering. Note that not all diameters are available in all lengths — check the variant selector for the combination you need.

Solid wire (this product) has a single continuous conductor. It holds its shape after bending, making it ideal for forming, sculpting, grounding runs, and coil winding. Stranded wire consists of multiple thin wires twisted together, making it more flexible and resistant to fatigue from repeated bending — better for applications where the wire moves, such as appliance cords or robotics wiring. For static installations, jewelry forming, and coil work, solid wire is the correct choice.