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Tin - Zinc 70/30

Product information "Tin - Zinc 70/30"

Tin‑Zinc 70/30 Electrolyte BMG‑100

Eco‑Friendly Tin‑Zinc Alloy Plating Solution for Durable Metal Coatings


Short Description

The Tin‑Zinc 70/30 Electrolyte BMG‑100 is a specialized electroplating solution designed to deposit a tin‑zinc alloy layer with approximately 70 % tin and 30 % zinc. This alloy coating offers excellent corrosion resistance, solderability, and ductility, while serving as an environmentally friendlier alternative to cadmium plating. 


Applications

This tin‑zinc alloy electrolyte is suitable for:

  • Alloy plating with tin and zinc for protective and functional layers

  • Corrosion protection on ferrous and non‑ferrous metals

  • Base coatings or primers before further plating steps

  • Functional plating for joint and mechanical components

  • Applications that require good solderability and flexibility


How It Works (Simple Explanation)

Tin–zinc electroplating uses an electrical current to reduce tin and zinc ions from the electrolyte onto the surface of the part being plated. The deposited alloy forms a uniform, adherent coating that combines the beneficial properties of both metals.


Benefits of Tin‑Zinc 70/30 Alloy Plating

  • Environmentally friendlier alternative to toxic cadmium plating 

  • Excellent corrosion resistance for demanding environments

  • High solderability — ideal for assembly and electronics

  • Good ductility for flexible components

  • Even coating thickness, even in recessed areas


Typical Properties

PropertyValue / Range
Electrolyte typeTin‑zinc alloy plating solution
Alloy ratioapprox. 70 % tin / 30 % zinc
Coating finishSilver‑white to matte grey (polishable)
Corrosion protectionVery good
SolderabilityExcellent
DuctilityHigh
Layer uniformityGood in recessed and complex shapes

Practical Application Notes

Preparation:

  • Clean and degrease surfaces thoroughly.

Plating:

  • Operate the electrolyte with suitable anodes such as zinc or inert materials.

  • Gentle agitation enhances uniform deposition.

Post‑Treatment:

  • Rinse plated parts and dry thoroughly.

  • Polishing can enhance final appearance.


Safety Information

  • Wear protective gloves, goggles, and appropriate clothing

  • Avoid contact with skin and eyes

  • Rinse immediately with water if contact occurs

  • Use only in well‑ventilated areas

  • Do not ingest; keep out of reach of children

  • Dispose of chemical waste according to local regulations


Conclusion

The Tin‑Zinc 70/30 Electrolyte BMG‑100 delivers durable, corrosion‑resistant alloy coatings with excellent mechanical and functional properties.
Its combination of environmental friendliness, solderability, and performance makes it an ideal choice for protective and functional electroplating applications.

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