What applications and base metals is the Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4 suitable for?

Soldering flux is suitable for copper-to-copper and copper-to-brass plumbing joints. Verify the flux meets ASTM B813 or equivalent standard for potable water plumbing work, as required by most plumbing codes. Harris Bridgit flux is NSF-listed for use on copper potable water systems.

How do I remove flux residue after using the Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4?

All flux residue must be removed after completing the joint. For brazing and soldering, clean flux residue with warm water and a stiff brush immediately after the joint cools — flux becomes harder to remove as it ages. For SAW welding, remove slag and flux residue with a chipping hammer and wire brush between passes and after final welding. Confirm complete flux removal, especially in pressure vessel, pipe, and food-grade applications where residue can cause corrosion or contamination.

How should I store the Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4?

Store flux in a sealed container in a cool, dry location. Moisture contamination degrades paste and powder fluxes — activated flux or flux that has absorbed moisture should be discarded and not used, as it can cause porosity or incomplete flux activation during the joining operation. Keep containers sealed between uses.

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Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4

Q: What is the Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4 used for?

The Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4 is a soldering flux used to clean metal oxide from copper and brass surfaces before soldering, promoting solder wetting and capillary flow into the joint. Apply flux with a brush to all surfaces that solder will contact before assembling and heating the joint. Always clean flux residue from completed joints — soldering flux is mildly corrosive and will cause discoloration or long-term joint degradation if left in place.

Q: How do I apply the Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4 correctly?

Apply flux using an appropriate method for the process: brush application for soldering and brazing fluxes (cover all joint surfaces evenly), pre-placed granular flux feeding for SAW welding. Flux quantity matters — too little flux leaves bare areas that oxidize; too much flux can be difficult to remove after welding or brazing. Apply a thin, even coat to all contact surfaces.

SKU: SCLF4

$195.36

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Stay-Clean® liquid soldering flux 1 ea. 4 oz. bottle w/flip-top

Overview

Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4

Stay-Clean liquid is a general purpose zinc chloride flux for soldering with all soft solders. Ideal for use with tin-lead, tin-antimony and Stay Brite solders, as well as virtually all metals, except aluminum, magnesium or titanium. It is not recommended for use in electrical or electronic applications.

Features

General-purpose liquid flux for soldering with all soft solders
Formulated to be active at temperatures optimum for a range of solder compositions
Ideal for soldering a variety of base metals
Effectively removes surface oxide and prevents oxide formation during soldering
Minimal pre-cleaning is required with Stay-Clean flux
Due to the corrosive nature of the flux residue, this product is not recommended for use in electrical or electronic applications

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