--- product_id: 9423641 title: "24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031\" Diameter" brand: "kester" price: "VT23071" currency: VUV in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.vu/products/9423641-24-6337-8800-50-activated-rosin-cored-wire-solder-roll store_origin: VU region: Vanuatu --- # 63/37 Alloy for optimal melt & flow No-Clean Flux leaves zero residue 0.031" Diameter for precision soldering 24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031" Diameter **Brand:** kester **Price:** VT23071 **Availability:** ✅ In Stock ## Summary > 🛠️ Solder Like a Pro, Shine Like a Boss ## Quick Answers - **What is this?** 24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031" Diameter by kester - **How much does it cost?** VT23071 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/9423641-24-6337-8800-50-activated-rosin-cored-wire-solder-roll) ## 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, No Fuss:** Non-corrosive, non-conductive residues mean no post-solder cleaning needed - • **Precision Diameter:** 0.031" wire thickness ensures detailed work on delicate electronics - • **Versatile & Reliable:** Perfect for drones, Arduino, Raspberry Pi, and all your high-tech projects - • **Trusted Industry Standard:** Kester’s 63/37 alloy is the go-to choice for pros and makers alike - • **Effortless Flow, Professional Finish:** Melts smoothly at 390-420°F for flawless joints every time ## Overview Kester 24-6337-8800 is a premium 63/37 tin-lead rosin core solder wire with a 0.031" diameter, featuring a no-clean flux that leaves non-corrosive, non-conductive residues. Designed for precision electronics work, it melts smoothly at 390-420°F, delivering reliable, clean, and professional-grade solder joints favored by hobbyists and professionals alike. ## Description 24-6337-8800245 No-Clean Flux Solder will create visually acceptable assemblies without the need and expense of cleaning. Solderability and efficiency are comparable to that of mildly activated rosin flux (RMA). Residues are non-corrosive, non-conductive and do not require removal in most applications. Review: It’s Kester! Melts Like Butter Hardens like Steel (well for tin solder. Lol) - What can I say? It’s Kester Solder. The Solder Industry Standard. It flows on like butter, hardens like shiny steel. Simply works. I use it mainly for soldering my Drones & Arduino as well as Rasberry P.I. projects. Kester solder simply performs as long as you’re using the proper percentage and type as recommended for your particular need. I will never again use lead free solder. Using Kester assures top quality possible every single time where any mistakes made are not due to this solder but the solderer be it the wrong temp, iron or technique used, etc.. I find it melts and flows perfectly for me especially on the numerous boards and wires contained in a drone at 390F to 420F but that’s a personal preference coming from someone who’s been soldering RC and drone projects over 15 years always coming back to Kester every time I’ve bought others at a cheaper or even sometimes more expensive price but what can I say? It’s Kester. Just buy it you won’t regret it. Review: Bare Minimum High-Quality Rosin Flux - Kester 245 is a very clean high-quality solder, with a minimum size core (1.1%) of halide free low activity flux (ROL0, per J-STD-004B). I use it when I'm using supplemental liquid or gel flux, (which I don't want to mix with my standard go-to Kester 44's flux). Kester 245 leaves the least amount of non-acidic residue. It is truly a no clean solder. ## Features - Package Dimensions: 6.223 cms (L) x 6.731 cms (W) x 6.223 cms (H) - Product Type: Electronic Component - Package Quantity: 1 - Country Of Origin: United States ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00068IJOU | | Best Sellers Rank | #38,907 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #90 in Solder | | Date First Available | September 27, 2013 | | Is Discontinued By Manufacturer | No | | Item Weight | 1 pounds | | Item model number | 24-6337-8800 | | Manufacturer | Kester | | National Stock Number | 3439-01-509-4430 | | Product Dimensions | 2.5 x 2.5 x 2.25 inches | ## Images ![24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031" Diameter - Image 1](https://m.media-amazon.com/images/I/71aGruKVs2L.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 ### ⭐⭐⭐⭐⭐ It’s Kester! Melts Like Butter Hardens like Steel (well for tin solder. Lol) *by M***E on October 3, 2019* What can I say? It’s Kester Solder. The Solder Industry Standard. It flows on like butter, hardens like shiny steel. Simply works. I use it mainly for soldering my Drones & Arduino as well as Rasberry P.I. projects. Kester solder simply performs as long as you’re using the proper percentage and type as recommended for your particular need. I will never again use lead free solder. Using Kester assures top quality possible every single time where any mistakes made are not due to this solder but the solderer be it the wrong temp, iron or technique used, etc.. I find it melts and flows perfectly for me especially on the numerous boards and wires contained in a drone at 390F to 420F but that’s a personal preference coming from someone who’s been soldering RC and drone projects over 15 years always coming back to Kester every time I’ve bought others at a cheaper or even sometimes more expensive price but what can I say? It’s Kester. Just buy it you won’t regret it. ### ⭐⭐⭐⭐⭐ Bare Minimum High-Quality Rosin Flux *by M***L on June 19, 2025* Kester 245 is a very clean high-quality solder, with a minimum size core (1.1%) of halide free low activity flux (ROL0, per J-STD-004B). I use it when I'm using supplemental liquid or gel flux, (which I don't want to mix with my standard go-to Kester 44's flux). Kester 245 leaves the least amount of non-acidic residue. It is truly a no clean solder. ### ⭐⭐⭐⭐⭐ Great material *by M***E on November 25, 2025* Worth the price point, makes soldering so much faster ## 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 --- ## 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.vu/products/9423641-24-6337-8800-50-activated-rosin-cored-wire-solder-roll](https://www.desertcart.vu/products/9423641-24-6337-8800-50-activated-rosin-cored-wire-solder-roll) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-16*