Fernox Fry Powerflow Water-Soluble Plumbing Flux Paste (350g)

Fernox Fry Powerflow Flux is an industry-renowned, high-performance plumbing soldering paste engineered to facilitate flawless capillary wetting across copper pipework networks. Formulated as a water-soluble compound, this professional-grade flux aggressively cleanses mating metals upon heat application, stripping away deep surface oxidation to allow molten solder alloys to flow deeply and uniformly into fitting sockets. It comes highly recommended for mechanical contractors, registered heating engineers, and DIYers who require an absolute, leak-proof capillary joint across domestic and commercial hot and cold potable drinking water systems.

Why Choose Fernox Fry Powerflow Flux?

• 100% Water-Soluble Cleanliness: Formulated with an advanced, fully water-soluble synthetic base. Unlike old-fashioned, greasy acid fluxes that leave persistent petroleum residues behind, any excess Powerflow paste trapped inside the pipeline liquefies instantly and flushes away completely upon contact with cold water, protecting your installation from localized internal pitting and chemical taint.

• Potable Water and WRAS Approved: Extensively tested and officially certified for complete material safety on human consumption loops. It leaves zero toxic residues when flushed correctly, making it fully compliant with modern building regulations and water authority standards.

• Aggressive Oxide Clearing Agent: Specially chemically balanced to activate immediately under torch heat. It breaks down tough surface tarnishing, microscopic grease films, and atmospheric scale on the copper face, creating a pristine, chemically pure surface for the molten solder to fuse with.

• Exceptional Capillary Pull Acceleration: Drastically reduces the surface tension of molten metal alloys. Whether you are using traditional end-feed couplers or pre-soldered ring fittings, this paste accelerates the capillary action, drawing the liquid solder deeply and smoothly into 15mm, 22mm, or 28mm joints for a uniform structural seal.

• Stays Placed Without Running: Features a highly stable, non-drip paste consistency that clings effortlessly to vertical and overhead pipe interfaces. It resists premature running and burning out under high torch heat, providing a generous working window on complex structural pipe layouts.

Applications

• Fluxing copper pipelines, brass couplers, and gunmetal fittings prior to capillary soldering

• Assembling structural pipe runs in domestic hot and cold potable drinking water networks

• Installing closed-circuit central heating loops, radiator feeds, and underfloor manifold networks

• General-purpose commercial maintenance, plumbing repairs, and rapid district heating upgrades

Key Features

• High-performance, trade-grade plumbing flux paste

• Water-soluble formula flushes away completely to eliminate internal pipe corrosion

• Suitable and safe for both hot and cold potable drinking water systems

• Creates ideal metal surfaces for superior solder flow and capillary wetting

• Easy to apply using a standard trade flux brush directly onto cleaned copper faces

Technical Specifications

• Brand: Fernox (Fry)

• Product Name: Powerflow Flux

• Product Type: Water-Soluble Active Plumbing Soldering Flux

• Container Weight: 350 g

• Form: Stable Paste

• Alloy Compatibility: Performs flawlessly with Lead-Free and Lead-Containing plumbing solders

• Substrate Compatibility: Copper Pipes, Brass Couplings, Bronze Fittings, and Gunmetal Connectors

Buy online today for fast nationwide delivery across Ireland, or select Click & Collect to pick up your plumbing flux pastes, solders, and mechanical installation supplies directly from our Limerick showroom.