--- product_id: 380214706 title: "Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods" brand: "bluefire" price: "VT1297" currency: VUV in_stock: false reviews_count: 5 url: https://www.desertcart.vu/products/380214706-bluefire-favorcool-jfb-102s-1-2-lb-brazing-flux-powder store_origin: VU region: Vanuatu --- # Active range 600-850℃ Enhances fluidity & wettability Half-pound dry powder pack Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods **Brand:** bluefire **Price:** VT1297 **Availability:** ❌ Out of Stock ## Summary > 🔥 Master the art of flawless brazing with Bluefire’s precision flux! ## Quick Answers - **What is this?** Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods by bluefire - **How much does it cost?** VT1297 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/380214706-bluefire-favorcool-jfb-102s-1-2-lb-brazing-flux-powder) ## Best For - bluefire enthusiasts ## Why This Product - Trusted bluefire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value Pack:** Generous 1/2 lb dry powder ensures you never run out mid-project. - • **Precision Heat Control:** Operates flawlessly between 600-850℃ for silver solder HVAC and brazing rods. - • **Superior Flux Performance:** Boosts fluidity and wettability for stronger, cleaner joints every time. - • **Oxide & Contaminant Removal:** Effectively clears oxides and oils, preventing re-oxidation for flawless welds. - • **Versatile Metal Compatibility:** Perfect for copper, steel, stainless steel, and dissimilar metal joints. ## Overview Bluefire FAVORCOOL JFB-102S is a premium 1/2 lb dry brazing flux powder designed for silver-bearing alloys, operating efficiently between 600-850℃. Ideal for HVAC, plumbing, and metal joining tasks, it enhances fluidity, wettability, and oxide removal to ensure strong, reliable joints across copper, steel, and stainless steel applications. ## Description Soldering flux is essential in brazing and soldering, providing functions crucial for strong, reliable joints. Soldering flux assists in heat conduction, ensuring even heat distribution across the joint area, which is vital when working with silver solder and copper solder for effective bonding. A key function of brazing flux is to remove oxides from the surfaces of parent materials and brazing rods. These oxides can inhibit the flow and adhesion of solder or brazing material. By removing them, flux paste enhances wettability and fluidity, which is crucial in plumbing solder applications and when using brazing rods with flux. In addition to clearing oxides, soldering flux reduces surface tension, enlarging the brazing area. This allows silver solder or copper solder to spread more uniformly, resulting in stronger connections, which is crucial for silver solder HVAC systems and brazing rods for copper HVAC. Solder and flux also clear oil stains from parent materials. Contaminants like oil can prevent proper adhesion, leading to weak joints. By eliminating these, silver solder flux ensures strong bonds, particularly in Phosphorus Filler Brazing and Filler Brazing Rod flux applications. Additionally, soldering flux prevents re-oxidation during soldering by forming a protective barrier over metal surfaces. This protection is vital for products like Stay Brite 8 solder and flux, which require clean surfaces for optimal performance. Available in solid paste, liquid, and gas forms, soldering flux is indispensable in soldering and brazing tasks, from plumbing repairs to complex HVAC installations. By enhancing soldering efficiency and reliability, soldering flux ensures the integrity and longevity of metal joints across various applications. Review: Good Review: بودر - جيد بس الكميه قليله مقارنه بالسعر . ## Features - Use with silver-bearing alloys for jointing copper-copper, steel-stainless steel, and dissimilar metals: This soldering flux is ideal for applications involving silver solder and copper solder. Its active range of 600-850℃ makes it suitable for silver solder HVAC and brazing flux applications, ensuring strong joints in plumbing solder and brazing rods with flux. Whether you're working with brazing rods for copper HVAC or silver solder flux, this product guarantees reliable performance. - Half-pound value pack: This solder and flux combination comes in a convenient half-pound package, offering more contents than typical water-mixed flux paste. The flux powder is perfect for extensive use with silver solder and brazing rods, providing exceptional value for plumbing solder projects and HVAC applications involving silver solder and brazing rods for copper HVAC. - Completely dry powder: The flux powder formulation contains more active ingredients than water-mixed flux paste, enhancing its effectiveness with silver solder and copper solder. This brazing flux is designed to improve fluidity and wettability in silver solder HVAC and other applications requiring brazing rods with flux. It's an essential component for those needing high-quality soldering flux in demanding environments. - Enhances welding performance: This solder and flux product increases the welding performance of silver copper brazing alloys, significantly improving fluidity and wettability. It is specifically formulated for use with silver solder, brazing rods, and copper solder, making it indispensable for plumbing solder and HVAC applications. The enhanced capabilities of this silver solder flux ensure optimal results with brazing rods for copper HVAC. - Important functions of soldering flux: The functions of this soldering flux include assisting in heat conduction, clearing oxides from the surface of parent materials and brazing materials, reducing surface tension, and removing oil stains from soldered materials. It enlarges the brazing area and prevents re-oxidation, making it a versatile choice for silver solder, brazing rods with flux, and copper solder applications. Available in solid paste, liquid, and gas forms, it is an essential tool for achieving reliable joints with silver solder flux in HVAC and plumbing solder tasks. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093W8SFDX | | ASIN | B093W8SFDX | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #120,716 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Brazing Equipment | | Customer Reviews | 4.8 4.8 out of 5 stars (103) | | Customer reviews | 4.8 4.8 out of 5 stars (103) | | Date First Available | 24 September 2021 | | Date First Available | 24 September 2021 | | Item Package Quantity | 1 | | Item Weight | 227 g | | Item model number | JFB-102S | | Item model number | JFB-102S | | Manufacturer | Bluefire | | Manufacturer | Bluefire | | Material | stainless_steel, copper, silver, steel, metal | | Number Of Pieces | 1 | | Part number | JFB-102S | | Pattern | 1/2lb Silver Copper Brazing Flux Powder | | Product Dimensions | 7.62 x 10.16 x 7.62 cm; 226.8 g | | Product Dimensions | 7.62 x 10.16 x 7.62 cm; 226.8 g | ## Images ![Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods - Image 1](https://m.media-amazon.com/images/I/61QrsIwBvXL.jpg) ![Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods - Image 2](https://m.media-amazon.com/images/I/61RIqgV4krL.jpg) ![Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods - Image 3](https://m.media-amazon.com/images/I/51juynAdDvS.jpg) ![Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods - Image 4](https://m.media-amazon.com/images/I/61NfulAEasS.jpg) ![Bluefire FAVORCOOL JFB-102S 1/2 lb Brazing Flux powder for Silver Phos Copper Welding Alloys Rods - Image 5](https://m.media-amazon.com/images/I/71WVMhmPT+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by R***S on 6 February 2026* ### ⭐⭐⭐ بودر *by م***ي on 10 June 2023* جيد بس الكميه قليله مقارنه بالسعر . ### ⭐⭐⭐⭐⭐ Bonne qualité de produit. *by B***D on 3 August 2025* ## Frequently Bought Together - BLUEFIRE JFB-102S 1/2 lb Silver Solder Brazing Flux powder for Silver Phos Copper Solder Brazing Rods HVAC Plumbing Solder Lower Welding Soldering Melting Temperature Easy Flow for Solder Fluid - BLUEFIRE 40 pcs 1/2 lb Bare Brass Brazing Rods Easy Flow Solid Round Sticks Diameter 1/16” x Length 14” Copper Zinc Tin Silicon Alloy Simple DIY Soldering for Aluminum & Zinc based Metals Gas Welding - BLUEFIRE 1/2 lb 9pcs Bare Bronze Brazing Rods Low Fume Copper Brazing Alloys Diameter 1/8” Length 14” Solid LFB Sticks for TIG MAPP Propane Torch Gas Welding Brass Carbon Steel Cast Iron Nickel Alloy --- ## 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/380214706-bluefire-favorcool-jfb-102s-1-2-lb-brazing-flux-powder](https://www.desertcart.vu/products/380214706-bluefire-favorcool-jfb-102s-1-2-lb-brazing-flux-powder) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*