--- product_id: 353816911 title: "JCUPB" brand: "bluefire" price: "$U2106" currency: UYU in_stock: true reviews_count: 11 category: "Blue Fire" url: https://www.desertcart.uy/products/353816911-jcupb store_origin: UY region: Uruguay --- # Optimal joint clearance 0.002"-0.007" Self-fluxing, no extra flux needed Precise melting range 1310°F-1508°F JCUPB **Brand:** bluefire **Price:** $U2106 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your brazing game—no flux, no fuss, just flawless joints every time! ## Quick Answers - **What is this?** JCUPB by bluefire - **How much does it cost?** $U2106 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/353816911-jcupb) ## 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 - • **Value-Packed Supply:** 21 sticks totaling 0.5 lbs of premium phosphor copper alloy—maximize your projects without frequent reorders. - • **Flux-Free Efficiency:** Skip the mess—self-fluxing rods streamline your workflow with zero extra flux required for copper and brass joints. - • **Pro-Grade Versatility:** Ideal for HVAC, plumbing, and mechanical repairs—perfect for copper, brass, and bronze with professional-grade durability. - • **Precision Heat Control:** Engineered with a sharp melting window (1310°F to 1508°F) for consistent, reliable brazing every time. - • **Trusted Quality Assurance:** Manufactured under strict quality controls, Bluefire rods deliver industry-grade performance that pros rely on. ## Overview Bluefire BCuP-2 brazing rods offer a self-fluxing phosphor copper alloy solution designed for professional-grade propane torch brazing. With a precise melting range of 1310°F to 1508°F and optimal joint clearance, these 21 sticks (0.5 lb total) provide reliable, flux-free brazing for copper, brass, and bronze applications in HVAC, plumbing, and mechanical repairs. ## Description 21 Sticks BLUEFIRE BCuP-2 Half 1/2 lb Self Fluxing Phosphor Copper Brazing Alloy Welding Rods No Need for Flux 0.050" x 1/8" x 14" Industry Professional Grade Propane Gas Soldering Torch Supply - desertcart.com Review: With map gas it melts and flows - Works great on copper up to #4 solid no flux needed Review: Good brazing rods - Works as expected. ## Features - Self Fluxing: USA USA AWS A58 Class: BCuP-2 brazing alloys rods. Contents: Phosphor (P): 6.6-7.4%; Copper (Cu): Rest. This brazing alloy is close to eutectic crystal composition. It is self fluxing and do not need any brazing flux when soldering copper to copper or copper to brass joints, while for brazing brass to brass parts, Bluefire JFB-102 brazing flux is recommended for best results. - Valued Pack: Each tube contains 21 sticks of 14" long brazing rods, total 0.5 (1/2) pound in weight. GREAT SAVING! - Best Performances: Solidus Temperature: 1310°F / 710°C, Liquidus Temperature: 1508°F / 820°C. Recommended joint clearance: 0.002"/0.007", Fluid Rating: 5. JCuPB brazing rods contain lesser phosphors, resulting a much better plastic performances and a little higher melting points. - Versatile: A popular and economic solution for HVAC, Plumbing and Mechanical repairing. Ideal for gas welding, MIG and TIG welding, contact welding, HF brazing and some furnace welding. Perfect for brazing Copper to Copper, or Brass and Bronze joints in A/C, freezer, evaporator, heat exchange, water heater and etc. Cannot be used to weld iron or steel parts. - High Quality: All Bluefire brazing alloys are manufactured under highest quality control. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093P5ZQSY | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #39,152 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Brazing Rods | | Color | Gold | | Customer Reviews | 4.6 4.6 out of 5 stars (384) | | Date First Available | April 28, 2021 | | Included Components | 1/2 lb Phosphor Copper Brazing Rods | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 8 ounces | | Item model number | JCuP B | | Manufacturer | Bluefire | | Material | Copper | | Part Number | JCuP B | | Product Dimensions | 14 x 0.13 x 0.05 inches | | Size | 0.5lb | ## Images ![JCUPB - Image 1](https://m.media-amazon.com/images/I/81tsHoL2LcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ With map gas it melts and flows *by S***K on December 24, 2025* Works great on copper up to #4 solid no flux needed ### ⭐⭐⭐⭐⭐ Good brazing rods *by C***B on September 7, 2025* Works as expected. ### ⭐⭐⭐⭐ Limited success with air acetylene or propane *by B***B on August 31, 2023* Worked on copper and galvanized steel air propane with good benzomatic torch, better flow with Hobart brazing flux granuals and with air acetylene torch. Fine for smaller copper on copper joining. Almost no flow on copper to stainless steel even with flux with these torches. Not as nice flow as brazing with some silver in the filler rod. Likely able to work with 1 in and larger with oxygen and flux. ## Frequently Bought Together - 21 Sticks BLUEFIRE BCuP-2 Half 1/2 lb Self Fluxing Phosphor Copper Brazing Alloy Welding Rods No Need for Flux 0.050" x 1/8" x 14" Industry Professional Grade Propane Gas Soldering Torch Supply - AUTOKAY 10PCS Stem HVAC AC Schrader System Vacuum 1/4" SAE *1/4" OD *2.75" AC Refrigeration Kit - GSParts Harris Stay-Silv Silver White Brazing Flux Paste for Hi Temperature, SSWF7 --- ## 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.uy/products/353816911-jcupb](https://www.desertcart.uy/products/353816911-jcupb) --- *Product available on Desertcart Uruguay* *Store origin: UY* *Last updated: 2026-05-01*