CuSi copper-silicon MIG wire for MIG brazing

49,98 €
49,98 € 51,00 €
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CuSi copper-silicon MIG wire for MIG brazing

Join thin and galvanised sheet without burning through it or damaging its protection. CuSi copper-silicon MIG wire, 0.8 mm, for MIG brazing, the standard bodywork technique for joining thin sheet with much less heat input than steel wire.

Because it works at a lower temperature, CuSi reduces distortion and better preserves the zinc coating on galvanised sheet. Available on a 0.8 kg spool for compact machines and a 5 kg spool for body shops with daily consumption.

✅ Key benefits

  • Less heat: less distortion on thin sheet.
  • Preserves the galvanising: ideal for zinc-coated sheet.
  • Bodywork standard: the most widely used joining technique in vehicle repair.
  • Two spools: 0.8 kg and 5 kg.

🏗️ What it's for

  • Repair of vehicle bodywork and panels.
  • Joining thin galvanised sheet.
  • Ducting, panel beating and light sheet metal work.
  • Body and paint shops.

📋 Technical features

  • Material: copper-silicon (CuSi)
  • Technique: MIG brazing
  • Diameter: 0.8 mm
  • Spools: 0.8 kg · 5 kg

Recommended set-up

Pulsed MIG welders or dedicated bodywork welders work very well with CuSi, as they control heat input better. Always shield with argon.

Why it is so widely used in bodywork

Vehicle sheet metal is thin and usually galvanised. With steel wire, the heat distorts the panel and burns off the zinc; with CuSi the joint is made with less heat input, the sheet distorts less and the finish is ready for preparation and painting.

💡 Vetonek tip: for CuSi, use rollers and a liner suitable for soft wire and shield with argon: the wire feeds better and the bead stays clean.

Frequently asked questions

What is MIG brazing?

It is a joining technique using copper-silicon wire that works with less heat than welding with steel wire, so it distorts thin sheet less.

What is CuSi wire used for?

For joining thin and galvanised sheet, especially in bodywork.

What gas do I need?

Shielding with argon is recommended.

What spools are available?

0.8 mm wire on a 0.8 kg or 5 kg spool.

Do I need special rollers?

It is best to use rollers and a liner suitable for soft wire, so that it feeds without deforming.

Frequently Asked Questions

What is MIG brazing?

It is a joining technique using copper-silicon wire that works with less heat than welding with steel wire, so it distorts thin sheet less.

What is CuSi wire used for?

For joining thin and galvanised sheet, especially in bodywork.

What gas do I need?

Shielding with argon is recommended.

What spools are available?

0.8 mm wire on a 0.8 kg or 5 kg spool.

Do I need special rollers?

It is best to use rollers and a liner suitable for soft wire, so that it feeds without deforming.