---
product_id: 561072155
title: "MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g)"
brand: "maiyum"
price: "$20.85"
currency: USD
in_stock: true
reviews_count: 13
category: "Maiyum"
url: https://www.desertcart.us/products/561072155-maiyum-63-37-tin-lead-rosin-core-solder-wire-electrical
store_origin: US
region: United States of America
---

# 63% Tin for superior conductivity Low melting point 183°C for fast soldering 0.8mm diameter perfect for precision work MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g)

**Brand:** maiyum
**Price:** $20.85
**Availability:** ✅ In Stock

## Summary

> 🔥 Solder smarter, not harder — join the pros who never settle for less!

## Quick Answers

- **What is this?** MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) by maiyum
- **How much does it cost?** $20.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/561072155-maiyum-63-37-tin-lead-rosin-core-solder-wire-electrical)

## 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

- • **Fast & Flawless:** Low melting point of 183°C guarantees quick melting and smooth flow for efficient work
- • **Reliable Strength:** 63% tin and 37% lead composition delivers strong, durable electrical connections
- • **Compact & Portable:** 50g spool fits easily in your toolkit or pocket for on-the-go repairs
- • **Precision Perfected:** 0.8mm wire diameter ensures clean, accurate solder joints every time
- • **Versatile Applications:** Ideal for circuit boards, DIY electronics, home repairs, and hobby projects

## Overview

The MAIYUM 63-37 Tin Lead Rosin Core Solder Wire is a 0.8mm diameter, 50g spool designed for professional-grade electrical soldering. With a low melting point of 183°C and a balanced 63% tin to 37% lead ratio, it ensures fast, smooth solder flow and strong, reliable joints. Perfect for circuit boards, DIY projects, and home repairs, this solder wire combines precision, portability, and performance for the discerning maker.

## Description

Product Description

## 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 | #9,026 in Home Improvement ( See Top 100 in Home Improvement ) #29 in Soldering Accessories |
| Item Dimensions LxWxH | 5.5 x 3 x 5.5 Centimeters |
| Item Weight | 54.4 g |
| Item model number | JF850 |
| Manufacturer | Shenzhen Joycefook Technology Co., Ltd |
| Net Quantity | 1.0 Count |
| Product Dimensions | 5.51 x 3 x 5.51 cm; 54.43 g |

## Images

![MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - Image 1](https://m.media-amazon.com/images/I/71vPhY4AaWL.jpg)
![MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - Image 2](https://m.media-amazon.com/images/I/71rA21VEcKL.jpg)
![MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - Image 3](https://m.media-amazon.com/images/I/71kE1t8vPuL.jpg)
![MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - Image 4](https://m.media-amazon.com/images/I/71qU1XduPgL.jpg)
![MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g) - Image 5](https://m.media-amazon.com/images/I/71XMieQ1YIL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***I on 16 April 2026*



### ⭐⭐⭐⭐⭐ Review
*by N***I on 16 April 2026*



### ⭐⭐⭐⭐⭐ Review
*by A***R on 9 April 2026*



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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*