--- product_id: 496064210 title: "Sn42/Bi58 T4 Lead Free Solder Paste（20g）" brand: "wonderway" price: "€ 20.67" currency: EUR in_stock: true reviews_count: 13 category: "Wonderway" url: https://www.desertcart.gr/products/496064210-sn42-bi58-t4-lead-free-solder-paste-20g store_origin: GR region: Greece --- # No-clean, minimal residue 138℃ low melting point 42% Tin, 58% Bismuth alloy Sn42/Bi58 T4 Lead Free Solder Paste（20g） **Brand:** wonderway **Price:** € 20.67 **Availability:** ✅ In Stock ## Summary > ⚡ Solder smarter, flow smoother — join the pro-grade repair revolution! ## Quick Answers - **What is this?** Sn42/Bi58 T4 Lead Free Solder Paste（20g） by wonderway - **How much does it cost?** € 20.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/496064210-sn42-bi58-t4-lead-free-solder-paste-20g) ## Best For - wonderway enthusiasts ## Why This Product - Trusted wonderway brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **No-Clean Formula:** Leaves virtually no residue, eliminating extra cleaning steps and saving time. - • **Optimized Sn42/Bi58 Alloy:** Balanced 42% tin and 58% bismuth for superior flow and strong, bright welds. - • **Precision Melting at 138℃:** Low melting point protects delicate components and speeds up your workflow. - • **Versatile Use Across Devices:** Perfect for circuit boards, ICs, phones, TVs, and industrial equipment repairs. - • **Strong Viscosity for Smooth Application:** Engineered for controlled dispensing with zero waste during soldering. ## Overview Wonderway Sn42/Bi58 T4 is a 20g lead-free solder paste featuring a low 138℃ 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, it’s ideal for delicate electronics and industrial applications, making it a top choice for professionals seeking reliable, mess-free soldering. ## Description Wonderway Sn42/Bi58 T4 Lead Free Solder Paste No Clean, 138℃ Melting Point (20g) - desertcart.com Review: Good product - Soldering is not something I am an expert at. This made repairing a ring quite simple. I found if remove the plunger and need and place the caps back on the syringe after use, the solder does not dry out. I have used it several times over the past month and it is still workable. The solder is quite versatile and a good product for the money. Review: Great Quality Solder Paste – Flows Smoothly and Works Perfectly! - I’ve been using the Wonderway Sn42/Bi58 T4 lead-free solder paste, and it’s easily one of the best budget-friendly pastes I’ve tried. The 138°C low melting point makes it perfect for delicate components, SMD soldering, and rework projects. It flows evenly, wets the pads nicely, and leaves very little residue — the no-clean formula really lives up to its name. ## Features - Paste Content: Alloy Tin 42% Bi58% , Sloder Flux Content: 10.5% - Product Parameters: Total Weight: 29g, Net Weight Of Paste: 20g - Paste Features: No Clean, Strong Viscosity, Bright Welding Point - Product Advantages: Pushing design for Smoother Flowing, No Waste During Welding - Applications: Widely Used In Circuit Board, IC, Phone, TV and Other Household Appliances and Industrial Equipment ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BLSKZ6W1 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #3,705 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Soldering Parts & Accessories | | Customer Reviews | 4.6 4.6 out of 5 stars (1,017) | | 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 | ## Images ![Sn42/Bi58 T4 Lead Free Solder Paste（20g） - Image 1](https://m.media-amazon.com/images/I/71oRBtkBdoL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by O***C on April 7, 2026* Soldering is not something I am an expert at. This made repairing a ring quite simple. I found if remove the plunger and need and place the caps back on the syringe after use, the solder does not dry out. I have used it several times over the past month and it is still workable. The solder is quite versatile and a good product for the money. ### ⭐⭐⭐⭐⭐ Great Quality Solder Paste – Flows Smoothly and Works Perfectly! *by M***N on November 4, 2025* I’ve been using the Wonderway Sn42/Bi58 T4 lead-free solder paste, and it’s easily one of the best budget-friendly pastes I’ve tried. The 138°C low melting point makes it perfect for delicate components, SMD soldering, and rework projects. It flows evenly, wets the pads nicely, and leaves very little residue — the no-clean formula really lives up to its name. ### ⭐⭐⭐⭐⭐ Very good stuff, tube will last a long time for my purposes *by L***R on September 14, 2025* Excellent stuff, good value as not very much is needed and pretty easy to use or clean up. I bought this to assist with removing solder on controller pcb's so that I could do stick swaps. I do not use this for the solder to hold the new sticks in place I use 63-37. What I use this for is to add a little to the globs of factory solder to help reduce the melting point as most use non leaded these days. If you are doing it for this purpose you do not need very much a small dot and you are good. Then just a touch of heat to melt the solders together and then remove, very easy and works great. ## Frequently Bought Together - Wonderway Sn42/Bi58 T4 Lead Free Solder Paste No Clean, 138℃ Melting Point (20g) - Liquid Solder Flux Dropper (30 ml/1 Oz.) I RMA Liquid Solder Flux I Soldering Flux I Electrical Solder I No Clean Liquid Flux I Rosin Flux I Soldering Flux for Electronics I Lead Free Liquid Solder I - Lesnow solder wick braid 10ft Length Desoldering Wick Braid Remover Tool Solder Sucker 1 piece No-Clean soldering Wick Wire Roll and Disassemble Electrical Components --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/496064210-sn42-bi58-t4-lead-free-solder-paste-20g](https://www.desertcart.gr/products/496064210-sn42-bi58-t4-lead-free-solder-paste-20g) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-02*