SCPF4 - Harris Stay-Clean Soldering Paste Flux 4 oz Brush Cap Jar

Superior Soldering Performance with Harris Stay-Clean®

The Harris Stay-Clean® Paste Flux is a general-purpose soldering flux designed to meet the rigorous demands of professional tradespeople. Packaged in a convenient 4 oz jar with a brush cap, this flux is engineered to provide exceptional cleaning and wetting properties for a wide variety of metals. It is particularly effective for joining copper, brass, bronze, steel, galvanized steel, and Monel®. By dissolving oxides and preventing further oxidation during the heating process, Stay-Clean® ensures that solder flows smoothly and adheres firmly to the base metal, creating strong, leak-free joints every time.

One of the primary advantages of the Stay-Clean® formula is its paste consistency. Unlike liquid fluxes that can run off the workpiece, this paste stays exactly where you apply it. This characteristic makes it the ideal choice for soldering tube joints, especially in vertical or overhead positions common in plumbing and HVAC installations. The flux is active up to 600°F (316°C), making it suitable for most soft soldering applications. It works seamlessly with virtually all leaded and lead-free solder compositions, offering versatility for different project requirements and compliance standards.

While Stay-Clean® is a powerful tool for structural soldering, users should be aware of its chemical properties. The flux residue is corrosive and must be removed after soldering to prevent long-term damage to the joint area. Because of this corrosive nature and potential conductivity, it is strictly not recommended for use in electrical or electronic applications. However, for mechanical pipe joining and general metal fabrication, it remains an industry standard for reliability and ease of use.

Manufactured in the USA, Harris Stay-Clean® Paste Flux represents quality and consistency. Whether you are repairing a radiator, installing residential plumbing, or fabricating metal art, this flux provides the surface preparation necessary for professional-grade results. The included brush cap ensures that you can apply the flux cleanly and precisely without the need for external tools, keeping your workspace organized and efficient.