✅ The Challenge
A major solar cell manufacturer in Vietnam was seeking to improve silver paste replacement strategies by using tin plating for front-side busbars and interconnects. Their goals included:
- Achieving uniform, conductive tin layers on silicon wafers with low contact resistance
- Replacing or complementing costly silver pastes in metallization lines
- Ensuring stable deposition over large-scale production
- Reducing sludge and bath instability seen in sulfate-based tin chemistries
The company needed a clean, low-residue tin source that could plate consistently in methanesulfonic acid (MSA)-based systems with minimal maintenance.
🧪 The Solution
HoriazonChemical provided plating-grade Tin Methanesulfonate, developed for high-efficiency solar applications:
- Tin content: ≥ 200 g/L
- Ultra-low levels of Fe, Pb, Cl⁻, and SO₄²⁻ impurities
- Highly stable in methanesulfonic acid electrolyte, compatible with automated inline plating lines
- Supplied in 250 kg PE drums and IBC totes, nitrogen sealed for purity retention
- Supported with COA, SDS, TDS, and plating bath guidelines
Our technical team collaborated with the client’s R&D to optimize current density, agitation, and brightener levels.
📈 The Results
✔️ 25% Higher Surface Uniformity
Plated tin layers showed smooth, even deposition with consistent grain structure.
✔️ Lower Contact Resistance
<1.5 mΩ/cm² achieved on plated busbars, improving current efficiency.
✔️ No Bath Crystallization After 30 Days
Stable formulation significantly reduced production line maintenance.
💬 Client Testimonial
“Thanks to HoriazonChemical’s reliable tin solution, we’ve reduced our reliance on silver and improved plating line efficiency. Their support throughout process optimization was outstanding.”
— Process Engineering Lead, Vietnamese Solar Module Manufacturer
☀️ Clean Coatings for Clean Energy
HoriazonChemical’s Tin Methanesulfonate provides solar cell producers with a cost-effective, compliant, and stable alternative to silver in front-contact metallization. Reach out to us for quotes, product information, sample requests, or technical support.