![]() Deburr (or ream) the inside of the pipe ends, using a deburring tool to remove any sharp edges and small bumps or roughness (known as burrs.) Deburring creates a smooth surface, ensuring less resistance to the water flow.ĭuring prep, clean the fitting hub and the pipe with either a fitting brush or an abrasive sand cloth for larger diameter pipes.Īpply a small amount of tinning flux inside the fitting and outside the pipe with an acid brush. It's important to clean all surfaces before soldering. How to use tinning flux during the soldering process Consult the Oatey Technical Department for applications not specifically referenced here. Stainless steel should be brazed or welded. We do not recommend Oatey flux and solders for aluminum, because it conducts heat so well that it is difficult to keep it warm enough to actually solder. Also, take care not to use it in electrical parts. Note: Tinning flux is not meant for use with aluminum, stainless steel or magnesium. ![]() It also prevents oxidation by filling the joint and blocking air from entering during the wetting process. The latter is necessary when soldering larger diameter piping systems.įlux provides superior wetting properties for better solder flow. Tinning powder particles enhance the flux formula to pre-tin piping and improve the solder flow, enabling even heating of a fitting. Unlike other flux formulas on the market, tinning flux contains ground-up solder flakes, known as tinning powder, that clean, tin and flux most commonly soldered metals, including copper, brass, zinc, galvanized iron lead and tin or copper-coated metals. What is tinning flux and how does it help? Let's explore how tinning flux helps the soldering process, how to apply it, and the types of tinning flux available at your supply house or local hardware store. Using tinning flux will help eliminate the human error of soldering low-lead brass and help fill the joint to create a leak-free connection. Soldering low lead brass can be daunting, since it doesn't conduct heat well. The Environmental Protection Agency determined that drinking water's maximum lead-contaminant level should be zero due to its toxicity. However, most older, lead-piping systems have been eliminated, because research has shown that lead in water pipes can harm the human body through repeated exposure. ![]() Generally, lead brass conducts heat better than metals used today. Tinning Flux is particularly useful to solder low- or no-lead brass effectively.
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