---
product_id: 242278233
title: "Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool"
brand: "kester"
price: "€ 165.46"
currency: EUR
in_stock: false
reviews_count: 1
category: "Kester"
url: https://www.desertcart.nl/products/242278233-kester-245-no-clean-core-solder-63-37-031-1
store_origin: NL
region: Netherlands
---

# 20 AWG wire gauge precision No-clean, non-corrosive flux residue 1 lb spool for extended use Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool

**Brand:** kester
**Price:** € 165.46
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Solder Smarter, Not Harder — Join the Elite Circuit Crafters!

## Quick Answers

- **What is this?** Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool by kester
- **How much does it cost?** € 165.46 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/242278233-kester-245-no-clean-core-solder-63-37-031-1)

## Best For

- kester enthusiasts

## Why This Product

- Trusted kester brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **No-Clean Formula:** Non-corrosive, non-conductive flux residue means zero cleanup and safer circuits.
- • **Long-Lasting Supply:** Generous 1 lb spool keeps your workflow uninterrupted on demanding projects.
- • **Precision Wire Gauge:** 20 AWG (.031 inch) ensures fine, reliable solder joints for intricate electronics.
- • **Universal Compatibility:** Works seamlessly with both leaded and lead-free alloys for versatile applications.
- • **Trusted Industry Standard:** Kester 245 ranks among top choices for professionals seeking quality and reliability.

## Overview

Kester 245 No-Clean Core Solder is a 20 AWG (.031 inch) diameter, 1 lb spool designed for electrical and electronic soldering. Its no-clean flux leaves non-corrosive, non-conductive residue, eliminating the need for post-solder cleaning. Compatible with both leaded and lead-free alloys, it’s a trusted choice for professionals demanding precision and reliability.

## Description

Designed for electrical and electronic work, this solder is ideal for applications where cleaning will not be performed. Non-corrosive and non-conductive flux residue. .031 dia. 1 lb. roll.

Review: Excellent Solder. - In my opinion, it the the best solder in the world for electronics, that I have come across.

## Features

- Wire gauge: 20 awg, 21 swg, 50 core and core size: 1.1 inch
- 0.031 inch
- Compatible with leaded and lead-free alloys

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00068IJOU |
| Best Sellers Rank | #79,698 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #103 in Solder |
| Item Dimensions LxWxH | 6.4 x 6.4 x 5.7 Centimeters |
| Item Weight | 454 g |
| Item model number | 24-6337-8800 |
| Manufacturer | Kester |
| Product Dimensions | 6.35 x 6.35 x 5.72 cm; 453.59 g |

## Images

![Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool - Image 1](https://m.media-amazon.com/images/I/71aGruKVs2L.jpg)
![Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool - Image 2](https://m.media-amazon.com/images/I/81lVH4Oxm9L.jpg)
![Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool - Image 3](https://m.media-amazon.com/images/I/71K-rTZ4KLL.jpg)
![Kester 245 No-Clean Core Solder 63/37 .031 1 lb. Spool - Image 4](https://m.media-amazon.com/images/I/61HXZiLazDL.jpg)

## Questions & Answers

**Q: Is this ok for pcbs? normally i don't care about cosmetics, but if i make a board for someone else how can i clean it? ipa?**
A: I use it for cellphone PCB soldering..I have also used it on a prototype board..it has a low melting point 
It gives a good finish..& cleans easily..
You can use Mg chemicals 99.9% alcohol to clean..or ABRO contact cleaner..or WD40 contact cleaner..FLUX is also easily cleaned by warming the board up a little and then use the alcohol with a brush to clean..

**Q: I see different 63/37 kester types of solder.  what is diff. between rosin core (i know what this is), organic core, no-flux core?**
A: Just so you know "Water Soluble" flux is highly corrosive...  You might think it's safe as it's called organic/water soluble, but it will strip you tin within hours if you don't completely clean it.  This solder is an "RMA" solder or "Rosin Mildly Activated" it is a very safe flux that doesn't require post clean, though your surface to be solder must also be very clean as it doesn't have much in the way of cleaning action.

**Q: what is the melting temperature of this solder?**
A: * Melting Range: 361º F, 183º C

**Q: Is this solder multicore ?**
A: Multicore Solder is a different manufacture, this is Kester Solder, all the same

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Solder.
*by D***E on 20 October 2020*

In my opinion, it the the best solder in the world for electronics, that I have come across.

## Frequently Bought Together

- Kester 24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031" Diameter
- 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
- Hakko CHP-170 - Micro Soft Wire Cutter

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*