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Tin Solution

Product information "Tin Solution"

Tin Electrolyte 22 g/L – Professional Tin Plating Solution for Coatings Exceeding 1 mm

High-Performance Tin Plating Bath for Thin and Extremely Thick Tin Coatings

The ready-to-use Tin Electrolyte BMG-097M from Betzmann Galvanik is a professional electroplating solution designed for depositing high-quality tin coatings on electrically conductive surfaces.

With a tin concentration of 22 g/L, this electrolyte produces uniform tin deposits with a matt to satin finish. One of its outstanding features is its ability to achieve exceptionally high coating thicknesses of more than 1,000 microns (over 1 mm).

This makes the tin plating solution suitable not only for thin functional coatings but also for applications requiring the controlled build-up of very thick tin layers.

At a current density of 0.01 A/cm² and a temperature of 20 °C, the deposition rate is approximately 0.5 microns per minute with mild agitation.

The electrolyte provides a cathode efficiency of 100% under the specified reference conditions and produces deposits with very low internal stress.

A graphite electrode is used for this plating process.

Key Features and Advantages

  • Extremely high coating thicknesses exceeding 1,000 µm (over 1 mm)

  • Tin concentration: 22 g/L

  • Deposition rate: approximately 0.5 µm/min

  • 100% cathode efficiency under specified reference conditions

  • Matt to satin surface finish

  • Crystalline surface structure at coating thicknesses above 20 µm

  • Very low internal stress

  • Suitable for the controlled build-up of thick tin coatings

  • Graphite electrode

Technical Specifications and Operating Conditions

ParameterSpecification
ProductTin Electrolyte BMG-097M
Tin concentration22 g/L
Reference current density0.01 A/cm²
Deposition rateApprox. 0.5 µm/min
Reference temperature20 °C
Operating temperature18–25 °C
pH value3.6–4.0
Maximum coating thicknessMore than 1,000 µm (over 1 mm)
Electrode materialGraphite
Electrolyte agitationMedium to vigorous
Cathode efficiency100% at 0.01 A/cm² with mild agitation
Deposit appearanceMatt to satin
Deposit structureIncreasingly crystalline above 20 µm
Hardness1.5 Mohs
Deposit density7.289 g/cm³
Internal stressLow to virtually undetectable
Shelf life1–2 years

Application and Processing

The tin electrolyte is suitable for electroplating electrically conductive workpieces and for the controlled deposition of thick tin coatings.

For optimum plating results, the following operating conditions are recommended:

  • Temperature: 18–25 °C

  • pH value: 3.6–4.0

  • Reference current density: 0.01 A/cm²

  • Electrode material: Graphite

  • Electrolyte agitation: Medium to vigorous

  • Filtration: Continuous filtration using a filter pump is recommended

Higher current densities can also be used. Longer anode operating times are possible when anode bags are not used. In these cases, continuous filtration of the electrolyte is essential.

Properties of the Deposited Tin Coating

The deposited tin coating has a matt to satin appearance. At thicknesses exceeding 20 µm, the surface develops an increasingly crystalline structure.

Additional deposit characteristics:

  • Very low internal stress

  • High cathode efficiency

  • White beta-tin (β-Sn) structure

  • Deposit density: 7.289 g/cm³

  • Hardness: 1.5 Mohs

Storage and Shelf Life

The tin electrolyte must be stored in a hermetically sealed container. The tin salt is sensitive to oxygen, so contact with atmospheric oxygen should be minimized to maintain product quality and stability.

Shelf life under proper storage conditions: approximately 1–2 years.

Safety and Transport Information

Health and safety classification: Irritant.

Please observe the information provided in the corresponding Safety Data Sheet (SDS).

Transport: Not classified as dangerous goods under transport regulations. No UN number assigned.

Betzmann Galvanik – Your Specialist for Professional Electroplating

Betzmann Galvanik offers high-quality electroplating electrolytes and professional solutions for surface finishing.

Our product range includes electrolytes for pen plating, brush plating, tampon plating and immersion plating, as well as matching electrodes, accessories and professional electroplating equipment.

Betzmann Galvanik – Quality, expertise and experience in electroplating and surface finishing.


Gefahr_(1)
Gefahr_(1)

 Labelling according Regulation (EC) No 1272/2008

Pictogram Signal word Warning Hazard statement(s).

H316 Causes mild skin irritation.

H320 Causes eye irritation.

H335 May cause respiratory irritation.

P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/spray.

P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. 

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