--- product_id: 11624212 title: "Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube" brand: "kester" price: "800086₫" currency: VND in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.vn/products/11624212-kester-44-solder-wire-63-37-0-031-rma-rosin store_origin: VN region: Vietnam --- # 0.031” diameter for precision 63/37 Tin/Lead optimal alloy High activity RMA Rosin flux Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube **Brand:** kester **Price:** 800086₫ **Availability:** ✅ In Stock ## Summary > 🛠️ Solder like a pro — flawless joints, zero compromises! ## Quick Answers - **What is this?** Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube by kester - **How much does it cost?** 800086₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/11624212-kester-44-solder-wire-63-37-0-031-rma-rosin) ## 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 - • **Flux That Works:** High-activity RMA Rosin flux guarantees smooth flow and minimal smoke for cleaner soldering. - • **Compact & Portable:** 1-ounce tube packs approx 24 feet of solder, perfect for on-the-go pros and tight workspaces. - • **Precision Perfected:** Ultra-fine 0.031” diameter ideal for intricate electronics and fine-pitch soldering. - • **Pro-Approved Quality:** Top-rated by electronics enthusiasts and industrial users alike for flawless performance. - • **Trusted Alloy Formula:** Classic 63/37 Tin/Lead blend ensures reliable, strong, and shiny joints every time. ## Overview Kester 44 Solder Wire features a precision 0.031” diameter with a classic 63/37 Tin/Lead alloy and high-activity RMA Rosin flux, delivering smooth, reliable soldering ideal for fine electronics work. Packaged in a convenient 1-ounce tube containing approximately 24 feet of solder, it’s the go-to choice for professionals demanding clean, strong, and shiny connections. ## 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: Great !!! - Works perfect 👌 ## 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 | #3,933 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Solder | | Brand | Kester | | Brand Name | Kester | | Customer Reviews | 4.8 out of 5 stars 700 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 | | Power Source | Corded Electric | | Special Feature | Portable | | Specific Uses For Product | Industrial Use | | Style | Pencil | | Style Name | Pencil | | UPC | 610370936757 | | Upper Temperature Rating | 700 Degrees Fahrenheit | ## Product Details - **Brand:** Kester - **Included Components:** User Manual - **Power Source:** Corded Electric - **Special Feature:** Portable - **Specific Uses For Product:** Industrial Use ## Images ![Kester 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. ### ⭐⭐⭐⭐⭐ Great !!! *by J***A on April 11, 2026* Works perfect 👌 ### ⭐⭐⭐⭐⭐ 11/10 !! This is the GOOD STUFF! *by M***E on February 7, 2026* THIS is the solder ive been looking for!! About out of my 20yr old unbranded roll thats the best stuff ive ever used and been buying different ones to try and replace it but they are all trash that doesnt melt(its not the lead free bs) or flow good and SMOKES like crazy. This kester is spot on to my old stuff and now i wonder it i had a roll of kester all along. This melts and flows amazing with very little smoke at all and no bad/unusual smell. ## 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.vn/products/11624212-kester-44-solder-wire-63-37-0-031-rma-rosin](https://www.desertcart.vn/products/11624212-kester-44-solder-wire-63-37-0-031-rma-rosin) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-22*