1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY
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1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY

1Kg Pure Copper Wire 99.9% Round Solid Bare Uncoated Jewellery Craft Bonsai DIY

HomeDIYer
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By HomeDIYer®

Price:
$60.78 USD
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In stock (500 units), ready to be shipped

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Description

1kg Pure Copper Wire 99.9% — Bare, Round & Ready for Jewellery, Bonsai & Craft Projects

Finding a reliable source of bare copper wire that doesn't oxidise prematurely, snap under tension, or arrive in inconsistent gauges is a genuine frustration for jewellery makers, bonsai artists, and electronics hobbyists alike. This 1kg spool of 99.9% pure copper wire is drawn to tight dimensional tolerances, giving makers the consistent diameter and conductivity they need across every metre of the coil.

Each spool contains 1kg of solid, round, uncoated bare copper wire available in diameters from 0.2mm (≈0.008 in) up to 5mm (≈0.197 in). The wire is annealed for softness and workability, making it easy to bend, coil, and shape by hand without cracking. The bare, uncoated surface retains the natural copper colour and develops a characteristic patina over time.

Typical applications include hand-crafted wire-wrapped jewellery and pendants, bonsai tree training and branch positioning, DIY electrical grounding and bonding runs, sculptural art wire projects, and craft winding for transformers or coils. The wide diameter range makes this 1kg pure copper wire suitable for both fine detail work and heavier structural forming.

⚡ Compatibility note: This wire is uncoated and uninsulated. It is not suitable as insulated electrical cable. For grounding, bonding, or bare conductor applications only — verify local electrical codes before use.

✅ Key Features of These Pure Copper Wire Spools

  • 🔩 99.9% Copper Purity — Electrolytic-grade copper delivers consistent conductivity and reliable performance in both electrical and craft applications.
  • 📏 Wide Diameter Range — Available from 0.2mm to 5mm in a single listing; select the exact gauge you need for fine jewellery detail or heavier bonsai training wire.
  • 🔄 Annealed & Workable — Soft-annealed finish allows hand-bending, coiling, and wrapping without cracking or work-hardening prematurely.
  • ⚖️ 1kg Spool Weight — A full kilogram per order gives hobbyists and small-batch makers a generous working supply without frequent reordering.
  • 🌿 Bare Uncoated Surface — No enamel, lacquer, or insulation coating; the natural copper surface is ready for patination, soldering, or direct electrical contact.
  • ✂️ Round Solid Cross-Section — Uniform round profile ensures consistent bending radius and predictable resistance values across the full length of the spool.

📐 Technical Specifications — Pure Copper Wire

Material Electrolytic copper, 99.9% purity
Wire Form Round, solid (not stranded)
Surface Finish Bare / uncoated / uninsulated
Temper Soft annealed
Spool Weight 1 kg (2.2 lb)
Wire Diameter See variant options (0.2mm – 5mm)
Length per Spool See variant options (varies by diameter)
Colour Natural copper (bare)
Conductivity See variant options
Insulation None — bare conductor

❓ Frequently Asked Questions

Which wire diameter should I choose for jewellery making?

For fine wire-wrapping and delicate pendants, 0.2mm–0.5mm diameters give the most flexibility and detail. For structural frames, clasps, or heavier wrapped stones, 0.8mm–1.5mm provides enough rigidity to hold shape. Bangle and ring forming typically uses 1.5mm–3mm depending on the desired stiffness.

Is this wire strong enough for bonsai training?

Yes. Copper wire is the traditional choice for bonsai training because it holds its shape after bending and grips bark gently. For thin branches, 1mm–2mm is typical; for primary trunks or thicker branches, 2.5mm–5mm provides the leverage needed to reposition wood over several months.

Will the bare copper wire corrode or tarnish?

Bare copper naturally oxidises when exposed to air and moisture, developing a brown or green patina over time. For jewellery, many makers intentionally accelerate this for an aged look, or apply a clear lacquer after forming to preserve the bright copper colour. For electrical grounding applications, surface oxidation has minimal impact on conductivity at the contact points.

Can I use this wire for electrical grounding or bonding?

This wire is an uninsulated bare copper conductor and is suitable for grounding, bonding, and earthing applications where bare conductors are specified. It is not suitable as a replacement for insulated electrical cable in live circuits. Always verify your local electrical code requirements before use in any electrical installation.

How do I choose between this and tinned or enamelled copper wire?

Bare copper is the right choice when you need direct metal-to-metal contact (grounding, soldering, patination) or a natural copper appearance. Tinned copper resists corrosion better in marine or humid environments. Enamelled (magnet) wire is used for coil winding where turns must be electrically isolated from each other. For jewellery and bonsai, bare copper is the standard.

How much wire length do I get per 1kg spool?

Length varies significantly by diameter. As a guide: 0.5mm wire yields approximately 450–500 metres per kg, while 2mm wire yields approximately 28–32 metres per kg, and 5mm wire yields approximately 4–5 metres per kg. Exact lengths depend on the drawn density of the specific coil — contact us to confirm for your chosen diameter.

Is the wire supplied on a reel or as a loose coil?

The wire is supplied as a coiled spool. Thinner gauges (0.2mm–1mm) are typically wound on a plastic or cardboard former; thicker gauges (1.5mm–5mm) may be supplied as a hand-coiled bundle. If packaging format is critical for your workflow, contact us before ordering to confirm the current format for your selected diameter.

🛒 Select your Wire Diameter above, then add to cart.

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