--- product_id: 57893475 title: "MAIYUM 63-37 Rosin Core Solder Wire 0.8mm 50g Tin Lead Electrical Soldering" brand: "maiyum" price: "¥2977" currency: JPY in_stock: true category: "Maiyum" url: https://www.desertcart.jp/products/57893475-maiyum-63-37-rosin-core-solder-wire-0-8mm-50g store_origin: JP region: Japan --- # Low melting point 183°C 1.8% rosin flux core 0.8mm diameter precision MAIYUM 63-37 Rosin Core Solder Wire 0.8mm 50g Tin Lead Electrical Soldering **Brand:** maiyum **Price:** ¥2977 **Availability:** ✅ In Stock ## Summary > ⚡ Solder Smarter, Not Harder — Join the Elite DIY Wave! ## Quick Answers - **What is this?** MAIYUM 63-37 Rosin Core Solder Wire 0.8mm 50g Tin Lead Electrical Soldering by maiyum - **How much does it cost?** ¥2977 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/57893475-maiyum-63-37-rosin-core-solder-wire-0-8mm-50g) ## Best For - maiyum enthusiasts ## Why This Product - Trusted maiyum brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clean, Reliable Connections:** Rosin core flux leaves non-corrosive residue, guaranteeing durable, long-lasting welds without extra cleanup. - • **Compact & Portable 50g Size:** Ideal pocket-friendly weight for on-the-go DIYers and professionals tackling repairs anywhere. - • **Trusted by Thousands of Makers:** Top-ranked solder with 4.6-star rating from 22,000+ users—join the community that demands quality. - • **Effortless Melting, Instant Flow:** Solder melts quickly at 183°C for fast, smooth joints that save you time on every project. - • **Precision Perfect for PCB Repair:** 0.8mm wire diameter ensures clean, accurate soldering on delicate electronics and circuit boards. ## Overview MAIYUM 63-37 Rosin Core Solder Wire is a premium 0.8mm diameter tin-lead alloy solder with 1.8% rosin flux core, melting at a low 183°C for fast, clean, and reliable electrical connections. Perfectly sized at 50g for portability, it’s highly rated by thousands for PCB repair, electronics DIY, and home improvement projects. ## Description MAIYUM 63-37 Rosin Core Solder Wire 0.8mm 50g Tin Lead Electrical Soldering | Low melting rosin flux, clean welds, non-corrosive residue, fits PCB repair, electronics DIY soldering - desertcart.com ## Features - Tin Lead Solder Wire: With Rosin Core Solder Wire - Parameters: solder wire Tin 63 37 - Flux content 1.8 %，electrical soldering wire dia is 0.8 mm (0.0315 inch)，gross weight 50 gram (0.11 lbs), good size for pocket - Low Melting Point: 361 °F/183 °C. easy to be soldered, flows smoothly, soldering fast and strong soldering point. - Applications: Very good soldering capability, esp for circuit board, DIY, home improvement, Repairation of cable/TV/Radio/sterro/ Toys and other electrical devices etc. (WARNING: This product can expose you to lead, which is known to the State of California to cause brith defects or other reproductive harm. For more information go to the offical Proposition 65 Warnings Website) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075WB98FJ | | Best Sellers Rank | #270 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Solder | | Color | 0.8mm 50g | | Customer Reviews | 4.6 4.6 out of 5 stars (22,383) | | Date First Available | September 24, 2017 | | Item Package Quantity | 1 | | Item Weight | 1.92 ounces | | Item model number | JF850 | | Manufacturer | Shenzhen Joycefook Technology Co., Ltd | | Material | tin | | Part Number | JF850 | | Product Dimensions | 2.17 x 1.18 x 2.17 inches | | Size | 0.8mm 50g | ## Images ![MAIYUM 63-37 Rosin Core Solder Wire 0.8mm 50g Tin Lead Electrical Soldering - Image 1](https://m.media-amazon.com/images/I/71vPhY4AaWL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What kind of soldiers can work for bikes** A: This answer is for those who want to solder aluminum tubing, to construct bike frames. The quick answer is no. Maiyum solder is for electronics. The solder you want can be found by searching for this in Amazon: 50 Pieces Aluminum Welding Rods 0.08 x 8 Inch Universal Low Temperature Welding Cored Wire Brazing Rod Tube for Electric Power, Drill Tap Polish and Paint . You will need a torch that can burn MAPP gas, and the proper PPE such as welding gloves and a fixed face shield. **Q: How do you solder. Do you put the solder on the iron than run over the wire or it should just melt on the wire without the iron melting the solder?** A: Solder follows heat, but it's important not to burn off all of the flux before it gets to where it needs to go (flux removes oxidation, which allows the solder to make a strong molecular bond with the surface). Putting solder on the tip of the iron first is a guaranteed way to burn off the flux in the solder before you put it where it needs to go. I typically touch the iron to where I want the solder to go, heat the connection, and then bring the solder in to either touch the same joint. On wires the iron will touch the opposite side as the solder - so the solder flows through toward the heat of the iron. In some applications the connection is too small, so I touch the solder to the iron as close as possible to the connection. If I ever need to apply solder to the iron first and then bring it over to a connection, I use a flux pen or paste flux to coat the connection before soldering it. **Q: Is this stuff magnetic or will it attract magnet?** A: This solder wire has no magnetic properties, but since it contains tin it is a paramagnetic material. The attraction to magnets is very low and should pose no problems when used in common electronic applications. **Q: Is it dual voltage?** A: This is solder with flux core. Voltage has nothing to do with it. ## Frequently Bought Together - MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - SRA Solder 135 Rosin Paste Soldering Flux For Electronics, No Clean Flux Made for Lead and Lead-Free Solder Circuit Boards and Copper Electrical Wire - Safe Clean Residues with No Goopy Mess (2oz Jar) - Fanttik T1 Max Soldering Iron Kit, Cordless Soldering Iron, 7 Seconds Fast Heating(390°F-840℉), Auto Sleep, 4 Precision Soldering Tips(C210), 360° Swivel Stand, Soldering Iron for Precision Repair --- ## 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.jp/products/57893475-maiyum-63-37-rosin-core-solder-wire-0-8mm-50g](https://www.desertcart.jp/products/57893475-maiyum-63-37-rosin-core-solder-wire-0-8mm-50g) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-20*