---
product_id: 549353307
title: "Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2%"
price: "€ 71.92"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.sk/products/549353307-weller-wsw-snpb-t0051403399-solder-wire-dia-0-3-mm
store_origin: SK
region: Slovakia
---

# Sn60Pb40 alloy ensures durable joints 0.3 mm diameter for precision soldering 2.2% flux content for flawless flow Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2%

**Price:** € 71.92
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Solder smarter, not harder — precision and durability in every wire!

## Quick Answers

- **What is this?** Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2%
- **How much does it cost?** € 71.92 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/549353307-weller-wsw-snpb-t0051403399-solder-wire-dia-0-3-mm)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Consistent Flux Core:** 100% continuous flux core guarantees smooth, reliable solder flow every time
- • **Safety & Cleanliness:** Patented Reduced Splash technology protects you and keeps your workspace spotless
- • **Durable Solder Joints:** Long-lasting, crack-resistant connections even on challenging surfaces
- • **Optimized Heat Performance:** Advanced alloy formula delivers perfect melting and flow for professional results
- • **Cost-Efficient Productivity:** Up to 70% less tip consumption saves time and resources, boosting your ROI

## Overview

Weller WSW SnPb solder wire (0.3 mm, 100 g) features a Sn60Pb40 alloy with 2.2% flux content, engineered for professional-grade soldering. Its patented continuous flux core and Reduced Splash technology enhance safety, reduce tip wear by up to 70%, and deliver long-lasting, crack-resistant joints—perfect for both hand and robotic applications.

## Description

Designed to enhance the quality of all hand and robotic soldering jobs, Weller WSW increases productivity while reducing operating costs. WSW solder wires optimize the performance of the soldering process by reducing tip consumption , ensuring a low total cost of ownership by decreasing labor time and resources. The patented Reduced Splash feature increases direct user safety and clean workbrench. With a guaranteed 100% continuous flux core, combined with pure first metal melting, WSW avoids costly rework and enables long-term, highly durable solder joints without cracking, even on difficult surfaces.

Review: This is the stuff to buy don't bother with he cheap Ali stuff. - Great solder. I was put onto this from joey does tech YouTube affiliate link as the solder i was using was a AliExpress special that was supposed to be lead but did have that sine to it or didn't flow like lead solder. This is about 4 times the cost of said ali solder but man this stuff is worth it. As a weekend solder-er i was trying to do things on the cheap but honestly this is one of them buy once cry once kind of things this is so much easier to use. It's not that expensive relatively speaking but it feels a lot compared to others. You get a 100g on the reel, the size i bought is 0.3mm and is fine for the small smd stuff i am doing at the moment and mods. 10/10 will buy again and get some larger stuff.
Review: Great solder for a known brand, although a little expensive 👍 - Great solder that works very well. It is extremely fine gauge and works really well with SMD components I used it for. It is expensive, but will last me ages 👍

## Features

- PERFORMANCE & PRODUCTIVITY - Optimized performance with a guaranteed and consistent 100% continuous flux core.
- QUALITY SOLDER JOINTS - Long-term, highly durable soldering joints that will not crack, even on difficult surfaces.
- LOW TOTAL COST OF OWNERSHIP - Up to 70% less reduced tip consumption and provide a low total cost of ownership by saving labor time & ressources due a higher productivity.
- REDUCED SPLASH - Increase direct user safety as well as workplace cleanliness.
- FLOW + HEAT PERFORMANCE - Patented alloys guarantee optimal results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Apex Tool Group |
| Part Number | T0051403399 |
| Product Dimensions | 6.35 x 6.48 x 6.6 cm; 130 g |
| Item model number | T0051403399 |
| Style | .3 mm |
| Material | copper |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Usage | Professional |
| Included Components | Weller WSW SnPb (T0051403399) Lead Free Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux content 2.2% |
| Batteries Required? | No |
| Item Weight | 130 g |

## Images

![Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2% - Image 1](https://m.media-amazon.com/images/I/611wbiIO7LL.jpg)
![Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2% - Image 2](https://m.media-amazon.com/images/I/816+ACYpDsL.jpg)
![Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2% - Image 3](https://m.media-amazon.com/images/I/81Cdi+9W4fL.jpg)
![Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2% - Image 4](https://m.media-amazon.com/images/I/81nGm7PKsWL.jpg)
![Weller WSW SnPb (T0051403399) Solder Wire, Dia: 0.3 mm / 0.012 in, Wt: 100 g / 3.527 oz, Alloy Sn60Pb40, Flux Content 2.2% - Image 5](https://m.media-amazon.com/images/I/91GKJE9KbYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is the stuff to buy don't bother with he cheap Ali stuff.
*by J***S on 2 January 2026*

Great solder. I was put onto this from joey does tech YouTube affiliate link as the solder i was using was a AliExpress special that was supposed to be lead but did have that sine to it or didn't flow like lead solder. This is about 4 times the cost of said ali solder but man this stuff is worth it. As a weekend solder-er i was trying to do things on the cheap but honestly this is one of them buy once cry once kind of things this is so much easier to use. It's not that expensive relatively speaking but it feels a lot compared to others. You get a 100g on the reel, the size i bought is 0.3mm and is fine for the small smd stuff i am doing at the moment and mods. 10/10 will buy again and get some larger stuff.

### ⭐⭐⭐⭐⭐ Great solder for a known brand, although a little expensive 👍
*by D***K on 26 March 2025*

Great solder that works very well. It is extremely fine gauge and works really well with SMD components I used it for. It is expensive, but will last me ages 👍

### ⭐⭐⭐⭐⭐ Nice
*by B***P on 17 January 2026*

Easiest wire I’ve used yet

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-29*