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โก Solder smarter, flow smoother โ join the pro-grade repair revolution!
Wonderway Sn42/Bi58 T4 is a 20g lead-free solder paste featuring a low 138โ melting point and a no-clean formula. Its 42% tin and 58% bismuth alloy ensures smooth flow and bright, strong welds with minimal residue. Designed for precision and efficiency, itโs ideal for delicate electronics and industrial applications, making it a top choice for professionals seeking reliable, mess-free soldering.












| ASIN | B0BLSKZ6W1 |
| Best Sellers Rank | #4,416 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Soldering Parts & Accessories |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,095) |
| Date First Available | November 8, 2022 |
| Item Package Quantity | 1 |
| Item Weight | 1.44 ounces |
| Item model number | SP-Sn42Bi58 |
| Manufacturer | wonderway |
| Material | Solder paste |
| Part Number | SP-20G-Sn42Bi58 |
| Power Source | fuel_powered |
| Product Dimensions | 3.73 x 1.35 x 0.92 inches |
| Size | T4 20g |
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