--- product_id: 11624212 title: "44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube" brand: "kester" price: "R673" currency: ZAR in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.co.za/products/11624212-44-solder-wire-63-37-0-031-rma-rosin-1 store_origin: ZA region: South Africa --- # 0.031" diameter for precision High activity RA rosin flux Approx. 24 feet per 1-oz tube 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube **Brand:** kester **Price:** R673 **Availability:** ✅ In Stock ## Summary > ⚡ Solder Smarter, Not Harder — Join the Pro Circuit! ## Quick Answers - **What is this?** 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube by kester - **How much does it cost?** R673 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/11624212-44-solder-wire-63-37-0-031-rma-rosin-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 - • **Long-Lasting Supply:** Generous 1-ounce Dispense Pak delivers approximately 24 feet of premium solder for extended use. - • **Precision Perfected:** 0.031" diameter wire ideal for fine-pitch electronics and detailed soldering projects. - • **Safe & Clean Finish:** Non-corrosive, non-conductive flux residue keeps your electronics pristine and maintenance-free. - • **Industry-Leading Alloy:** 63/37 Tin/Lead formula outperforms standard 60/40, trusted by pros for decades. - • **Instant Wetting Action:** Activated rosin flux ensures fast, reliable solder flow and superior joint quality every time. ## Overview Kester 44 Solder Wire 63/37 0.031" is a professional-grade, rosin-core solder wire featuring a high-activity RA flux for instant wetting and superior flow. Packaged in a convenient 1-ounce Dispense Pak with approximately 24 feet of wire, it uses the industry-standard 63/37 Tin/Lead alloy favored for electronics work. This solder delivers clean, reliable joints with non-corrosive flux residue, making it the go-to choice for precision soldering in electronics, RC vehicles, and production lines. ## Description Legendary Kester Solder in a convenient Dispense-Pak Saves You Money!Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. Kester 44 has virtually dominated the field of rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering.Features: Specially packed from Genuine Kester 24-6337-0027 solder 1-ounce Dispense Pak contains approx 24 feet of solder! Pemium Alloy outperforms 60/40 Tin/Lead Solder 67/37 Tin/Lead is most common for electronics work .031" Diameter is most common for electronics work High activity RA formulation Excellent solderability to a wide variety of metallizations Industry standard for decades Standard Core 66 (3.3% flux) Solder iron tip temperatures between 315-371°C (600-700°F) Flux residue is non-corrosive and non-conductiveA few warnings and cautions: For industrial use only For use by experienced electronics technicians User assumes all risk for application. Any warrantees are limited to replacement or of product. Always wear safety glasses when working with soldering equipment and materials Always use adequate ventilation when working with soldering equipment and materials Avoid breathing flux fumes emitted during soldering. Flux fumes may cause pulmonary irritation or damage. CML Supply is in no way affiliated with ITW Kester. Review: Perfect For 1/8 Scale Electric Buggys - The GOAT. Awesome solder and this is thr only solder I use with my Pinecil V2 Smart Iron. This stuff makes soldering much easier and if your wire is pre-tinned its even easier to get it to soak into strands vs un-coated. Been using this on all my RC cars motors & escs. Works great making longer charger leads and battery adapters. Perfect smooth & shinny silver welds. I use this with Rosin Paste and it sticks very good. Review: Flows great. - Flows great, bright shiny silver. PAY the extra money and buy this. Their is plenty in the tube, should last quite awhile. ## Features - Specially packed by TekLine Supply - 1-ounce Dispense Pak contains approx 24 feet of solder! - 67/37 Tin/Lead is most common for electronics work - .020" Diameter is common for fine-pitch electronics work - High activity RA formulation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00AVLM4SO | | Additional Features | Portable | | Best Sellers Rank | #3,791 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Solder | | Brand | Kester | | Brand Name | Kester | | Customer Reviews | 4.8 out of 5 stars 774 Reviews | | Head Style | Pencil | | Heating Element | Activated Carbon | | Included Components | User Manual | | Item Length | 27 feet | | Item Weight | 4.54 g | | Manufacturer | Kester | | Manufacturer Part Number | T44-031-DP | | Model Number | 731-KES44-031-DP | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | Corded Electric | | Special Feature | Portable | | Style | Pencil | | Style Name | Pencil | | UPC | 610370936757 | | Upper Temperature Rating | 700 °F | ## Product Details - **Brand:** Kester - **Included Components:** User Manual - **Power Source:** Corded Electric - **Special Feature:** Portable - **Style:** Pencil ## Images ![44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube - Image 1](https://m.media-amazon.com/images/I/61tYxlq3sZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect For 1/8 Scale Electric Buggys *by C***0 on March 23, 2026* The GOAT. Awesome solder and this is thr only solder I use with my Pinecil V2 Smart Iron. This stuff makes soldering much easier and if your wire is pre-tinned its even easier to get it to soak into strands vs un-coated. Been using this on all my RC cars motors & escs. Works great making longer charger leads and battery adapters. Perfect smooth & shinny silver welds. I use this with Rosin Paste and it sticks very good. ### ⭐⭐⭐⭐⭐ Flows great. *by J***E on August 29, 2026* Flows great, bright shiny silver. PAY the extra money and buy this. Their is plenty in the tube, should last quite awhile. ### ⭐⭐⭐⭐⭐ Great solder, the only brand I'm using in the future *by R***R on June 11, 2025* I've been using inexpensive solder for most of my life, I had gotten used to how horrible some are to melt and work with. While I'm not an expert at all when it comes to soldering. I've done enough to know now that I've been using junk in comparison LOL. For a new project I'm working on that requires soldering headers onto a fairly expensive GPS unit, I decided to do some solder research and came across this company. Yeah, it's more expensive than the others. But it's made here in the USA and I'm pretty sure most professional folks are using this because of the quality. Do your own research. This stuff is awesome. It melts quickly and easily and flows nicely. I'm never going back. ## Frequently Bought Together - Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube - PINECIL – Smart Mini Portable Soldering Iron, Small - 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 --- ## 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.co.za/products/11624212-44-solder-wire-63-37-0-031-rma-rosin-1](https://www.desertcart.co.za/products/11624212-44-solder-wire-63-37-0-031-rma-rosin-1) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-28*