--- product_id: 37559542 title: "Kester 186 Liquid Soldering Flux, RMA Rosin, 2-ounce Bottle" brand: "kester" price: "VT7306" currency: VUV in_stock: true reviews_count: 8 category: "Kester" url: https://www.desertcart.vu/products/37559542-kester-186-liquid-soldering-flux-rma-rosin-2-ounce-bottle store_origin: VU region: Vanuatu --- # Kester 186 Liquid Soldering Flux, RMA Rosin, 2-ounce Bottle **Brand:** kester **Price:** VT7306 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Kester 186 Liquid Soldering Flux, RMA Rosin, 2-ounce Bottle by kester - **How much does it cost?** VT7306 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/37559542-kester-186-liquid-soldering-flux-rma-rosin-2-ounce-bottle) ## Best For - kester enthusiasts ## Why This Product - Trusted kester brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Kester 186 is a rosin-based organic flux that is specifically designed for rework of conventional and surface mount circuit board assemblies. The low solids content and activator system results in LOW RESIDUE left on the assembly after soldering. There are no residues to interfere with electrical testing. Kester 186 flux exhibits improved soldering performance to minimize solder bridges (shorts) during rework operations. Review: Liquid is better than paste - I had to unsolder some components from a double sided board and my wicking wire was old and lost its flux. The paste just wouldn’t melt and wick itself into the flat copper wire. The liquid worked perfectly. You might think that I could just buy wicking wire - true, but I have about 10 rolls. Review: If you use solid solder or re-work antique electronics, this is the great stuff! - In active retirement I repair and restore great old ham radio equipment and antique old radios. The old solder is often so oxidized it won't flow and stick well when parts are replaced. In addition to using new rosin solder, a bit of this flux on the joint to be re-worked makes all the old solder receptive to accepting the new solder, to adhering to braided solder (wick) remover, and to make a good, strong, well-flowed joint. It works great for me! It's supposed to be non-corrosive, but just in case, removing any excess is a great idea! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MR49JY1 | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #43,509 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #102 in Solder #180 in Soldering Parts & Accessories #799 in Welding Equipment & Accessories | | Customer Reviews | 4.6 4.6 out of 5 stars (1,020) | | Date First Available | January 9, 2017 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 2.56 ounces | | Manufacturer | Kester | | Material | copper | | Package Dimensions | 6 x 4 x 4 inches | | Part Number | 186-2 | ## Images ![Kester 186 Liquid Soldering Flux, RMA Rosin, 2-ounce Bottle - Image 1](https://m.media-amazon.com/images/I/61nmi5QuCJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Liquid is better than paste *by N***M on April 12, 2026* I had to unsolder some components from a double sided board and my wicking wire was old and lost its flux. The paste just wouldn’t melt and wick itself into the flat copper wire. The liquid worked perfectly. You might think that I could just buy wicking wire - true, but I have about 10 rolls. ### ⭐⭐⭐⭐⭐ If you use solid solder or re-work antique electronics, this is the great stuff! *by F***R on May 25, 2024* In active retirement I repair and restore great old ham radio equipment and antique old radios. The old solder is often so oxidized it won't flow and stick well when parts are replaced. In addition to using new rosin solder, a bit of this flux on the joint to be re-worked makes all the old solder receptive to accepting the new solder, to adhering to braided solder (wick) remover, and to make a good, strong, well-flowed joint. It works great for me! It's supposed to be non-corrosive, but just in case, removing any excess is a great idea! ### ⭐⭐⭐⭐⭐ essential compound for soldering *by N***S on January 20, 2026* those who know, use it. those who don”t, should. provides an essential tack to whatever you are soldering, for the solder to jump and stick to. use after cleaning with kester brand cleaning flux, helps prevent oxidation while soldering when used correctly. ## Frequently Bought Together - Kester 186 Liquid Soldering Flux, RMA Rosin, 2-ounce Bottle - Kester 44 Solder Wire, 63/37 0.031”, RMA Rosin, 1-ounce Tube - 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.vu/products/37559542-kester-186-liquid-soldering-flux-rma-rosin-2-ounce-bottle](https://www.desertcart.vu/products/37559542-kester-186-liquid-soldering-flux-rma-rosin-2-ounce-bottle) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-17*