--- product_id: 11624264 title: "Kester solder 44\" Rosin Core #66/44 .8mm 1 lb. Spool" brand: "kester" price: "€ 130.86" currency: EUR in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.sk/products/11624264-kester-solder-44-rosin-core-66-44-8mm-1-lb store_origin: SK region: Slovakia --- # 0.8mm diameter precision wire 44% Rosin Core for superior flux action 1 lb spool for extended use Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool **Brand:** kester **Price:** € 130.86 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your craft with Kester’s precision solder – because every joint counts! ## Quick Answers - **What is this?** Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool by kester - **How much does it cost?** € 130.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/11624264-kester-solder-44-rosin-core-66-44-8mm-1-lb) ## 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 - • **Generous 1 lb Spool:** Ample solder length to power through large projects without interruption - • **Optimal Wire Diameter:** 0.8mm (.031") thickness balances control and flow for professional results - • **Trusted Industry Standard:** Meets ANSI J-STD-006-A for consistent quality and performance - • **Compact & Durable Packaging:** 2.5" spool fits neatly in your toolkit, ready for on-demand use - • **Precision Rosin Core Formula:** 44% rosin core ensures clean, reliable solder joints every time ## Overview Kester Solder 44 Rosin Core #66/44 is a 0.8mm diameter, 1 lb spool of premium SN60PB40 solder wire designed for professional-grade electronics and industrial applications. It features a 44% rosin core flux for superior solder flow and joint reliability, complies with ANSI J-STD-006-A standards, and is compactly packaged for easy handling and storage. ## Description Kester Solder 24-6040-002766/44 Rosin core solder1 lb spool.031 diameter Review: The best! I'm never settling for cheap solder again - I've been using cheap generic solder for a while, and I thought my soldering technique was poor because I kept getting cold solder joints and had to use a lot of flux. This stuff flows effortlessly and leaves nice, strong, shiny connections. I did a quick solder job and every solder joint on the PCB and my wire connections looked flawless on the first attempt, I didn't even need additional flux. I threw away all my cheap solder when I was done and I'm strictly using Kester solder from now on. Review: Great solder and got a spool that's new. - Glad to get a fresh 1 lb spool. Great product, just as good as the old stuff from the sixties and seventies. The info on the spool says: DOM 2024 - 01 - 26 which would be Jan. 26, 2024. This is the Date Of Manufacture or DOM which is very important as the rosin in the solder will dry out after a few years or maybe three. Kester 44, .031 diameter, rosin core flux is the best solder you can buy for small projects and printed circuit boards. Don't buy Lead Free or any other water based types. ## Features - 44 ROSIN Core - SN60PB40 #66/44 series - 8 mm (.031) - 24-6040-0027 ansi-j-std-006-a series ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.9 out of 5 stars 293 Reviews | ## Images ![Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool - Image 1](https://m.media-amazon.com/images/I/81DYd7Jw1zL.jpg) ![Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool - Image 2](https://m.media-amazon.com/images/I/816DGNHO1EL.jpg) ![Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool - Image 3](https://m.media-amazon.com/images/I/81qmlk08XVL.jpg) ![Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool - Image 4](https://m.media-amazon.com/images/I/61HXZiLazDL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ The best! I'm never settling for cheap solder again *by R***P on March 16, 2024* I've been using cheap generic solder for a while, and I thought my soldering technique was poor because I kept getting cold solder joints and had to use a lot of flux. This stuff flows effortlessly and leaves nice, strong, shiny connections. I did a quick solder job and every solder joint on the PCB and my wire connections looked flawless on the first attempt, I didn't even need additional flux. I threw away all my cheap solder when I was done and I'm strictly using Kester solder from now on. ### ⭐⭐⭐⭐⭐ Great solder and got a spool that's new. *by D***N on April 11, 2024* Glad to get a fresh 1 lb spool. Great product, just as good as the old stuff from the sixties and seventies. The info on the spool says: DOM 2024 - 01 - 26 which would be Jan. 26, 2024. This is the Date Of Manufacture or DOM which is very important as the rosin in the solder will dry out after a few years or maybe three. Kester 44, .031 diameter, rosin core flux is the best solder you can buy for small projects and printed circuit boards. Don't buy Lead Free or any other water based types. ### ⭐⭐⭐⭐⭐ The real thing. *by W***N on October 11, 2023* For electrical/electronics only. Thin gauge for small-scale soldering. Sometimes you do need lead unfortunately and this solder has really active and effective rosin flux unlike some stuff being imported from China. ## Frequently Bought Together - Kester solder 44" Rosin Core #66/44 .8mm 1 lb. Spool - 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 - Thermaltronics TMT-TC-2 Tip Tinner (20g) in 0.8oz Container --- ## 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.sk/products/11624264-kester-solder-44-rosin-core-66-44-8mm-1-lb](https://www.desertcart.sk/products/11624264-kester-solder-44-rosin-core-66-44-8mm-1-lb) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-10-03*