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Tin-Zinc Wire

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Dull But Reliable

A good lead-free solder joint often looks duller and grainier than an old tin-lead joint, which was bright and shiny. Inspectors once treated dullness as a warning sign. With lead-free alloys a matte finish can be perfectly normal, so strength is judged by standards, not shine

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  • Product Specification Sheet
  • Product Catalogue

Tin-Zinc Wire

Tin-zinc wire is an alloy wire fed into a metal-spraying gun. The gun melts the wire and sprays the molten metal onto a surface to form a conductive layer. Its most common use is in the manufacture of AC and DC capacitors, where the wire is sprayed onto the ends of wound capacitor elements to create the terminal contact surface.

Product Types

SMARTE VENTURES PVT LTD (formerly Shree Madhav Agencies Pvt. Ltd.) manufactures tin-zinc wire in two commonly used compositions:
  • 70% tin / 30% zinc
  • 80% tin / 20% zinc
The alloy has good mechanical strength and good solderability. Good mechanical strength lets the wire feed steadily through a spray gun. Good solderability lets lead wires be attached securely to the sprayed end layer afterwards.
The tin-zinc range comes from SMARTE’s tin, zinc and lead alloy heritage through our founder company, Shree Smelting. The wire is supplied in coils or spools of continuous length.

Product USP / Benefits

  • Two standard compositions: 70/30 and 80/20 Sn-Zn, for different spray and contact requirements.
  • Good mechanical strength: Supports steady feed in metal-spraying equipment.
  • Good solderability: Lead wires can be attached to the sprayed layer.
  • Lead-free alloy: Tin and zinc only in the stated compositions.
  • Continuous length: Supplied in coils or spools, which reduces re-spooling and splice stops during spraying.
  • Custom compositions and sizes on request, subject to confirmation.
  • Backed by metallurgy heritage: Tin and zinc alloy experience from Shree Smelting, a 45-year name in tin and lead products.

Certifications & Standards

  • RoHS: The alloy contains no lead as a stated element, which supports RoHS compliance. A product-specific declaration is available only if you hold one.
  • Company-level certifications (not product-specific): ISO 9001:2015, ISO 14001, CE, RoHS compliant.

The brochure names no standard for tin-zinc wire, so none is claimed.

TECHNICAL SPECIFICATIONS
Technical Parameter Specification Profile & Industrial Range
Material Base High-Purity Refined Zinc Metal (≥ 99.9%)
Physical Form Continuous length layer-wound profiles
Standard Coil Packaging Minimum mass of 25 kg per wrapped unit
Standard Spool Packaging Minimum mass of 10 kg per unit
Protective Wrapping Moisture-resistant polythene or heavy gunny sheeting
Processing Methods Compatible with Twin-Wire Arc Spraying & Oxy-Fuel Flame Spray Guns

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