Superflo Flux Paste (100g) is a high-performance soldering flux specifically formulated for the plumbing and heating industry. It is used to prepare copper pipes and brass fittings for capillary soldering (sweating joints), ensuring a strong, leak-proof bond by removing surface oxides and promoting the smooth flow of solder into the joint.
Technical Specifications
- Consistency: Smooth, non-runny paste.
- Base: Water-soluble (easy to flush from the system).
- Weight: 100g (Trade-size tub).
- Compatibility: Works with lead-free and tin-lead soft solders.
- Working Temp: Effective across standard plumbing soldering ranges.
Key Performance Features
- Self-Cleaning Action: The acidic components in the paste chemically clean the copper surface as it heats, stripping away oxidation that would otherwise prevent the solder from "tinning" the metal.
- Water Soluble: Unlike old-fashioned petroleum-based fluxes, Superflo is designed to wash away easily when the system is flushed. This prevents internal corrosion and "green spotting" on the outside of your copper pipes over time.
- Excellent Capillary Action: It actively pulls the molten solder into the tight gap between the pipe and the fitting (like a 22mm CxC Coupling), ensuring a 360-degree seal that can withstand the high-pressure output of a Pascali Pump.
- Non-Spattering Formula: Engineered to stay in place when the torch flame is applied, reducing the risk of "spitting" or hot flux landing on the installer's hands or Kaufmann Cotton Gloves.
- Lead-Free Compatible: Perfectly suited for modern potable water installations where lead-free solder is mandatory for health and safety.
Application & Professional Tips
- Mechanical Cleaning: Flux is a chemical cleaner, but it works best if you first mechanically clean the pipe. Use a piece of emery cloth or a Kaufmann wire brush to polish the 15mm or 22mm copper pipe until it shines.
- Thin Layering: Apply a thin, even coat of Superflo to the outside of the pipe and the inside of the fitting using a small brush. Avoid using your finger, as skin oils can interfere with the bond.
- Heat Control: Apply heat to the fitting, not the pipe. Once the flux begins to "bubble" and turn clear, the joint is nearly ready for solder. Touch the solder wire to the joint; if it melts instantly and "sucks" into the fitting, you have achieved perfect capillary action.
- The "Wipe Down": While the joint is still warm (but not hot), use a damp Shield Microfibre Cloth to wipe away excess flux from the outside of the pipe. This prevents the "green crust" (verdigris) from forming later.
- System Flush: Once the plumbing project for Easter 2026 is complete, flush the entire line with cold water for 5 minutes. This ensures no residual flux remains inside the pipes to affect the taste of the water or damage Advanced Valve diaphragms.
Common Use Cases
- Copper Pipe Installations: Joining 15mm and 22mm copper tubes for hot and cold water lines.
- Geyser Repairs: Soldering new tail-pieces and unions into high-pressure geyser setups.
- Gas Piping: Creating gas-tight joints for copper LPG lines (ensure local regulations are followed).
- Industrial Maintenance: Large-scale plumbing repairs during the Winter Bulk 2026 facility maintenance cycle.
Pro Tip: If the flux in the tub starts to "separate" (liquid sitting on top of the paste), simply stir it with a clean Kaufmann screwdriver or stick. To keep the paste fresh, always ensure the lid is screwed on tight after use to prevent it from drying out in the dry Gauteng air.
