What applications and base metals is the Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50 suitable for?

Brazing flux is used with silver brazing alloys and some copper-phosphorus alloys when joining copper to dissimilar metals. Phos-copper alloys (BCuP series) are self-fluxing on copper-to-copper joints but still require flux when brazing copper to brass, bronze, or steel. Always use the flux recommended by the filler metal manufacturer for the specific alloy and temperature range.

How do I remove flux residue after using the Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50?

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 Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50?

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.

Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50

Q: What is the Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50 used for?

The Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50 is a brazing flux that prevents oxidation on base metal and filler metal surfaces during torch brazing. Brazing flux is activated by heat — it liquefies at brazing temperature to coat the joint and exclude oxygen. Apply flux to all joint surfaces before heating. After brazing, remove all flux residue with warm water and a brush — brazing flux residue is corrosive and must be completely removed after the joint cools.

Q: How do I apply the Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50 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: DYNAW50

$577.52

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Dynaflow® white paste brazing flux 1 ea. 50 lb. pail

Overview

Harris Dynaflow White Paste Brazing Flux - 50 Pound Pail - DYNAW50

Dynaflow flux is a white paste silver brazing flux designed for brazing copper, brass, bronze, steel, and other ferrous base metals. The flux is formulated to provide a smooth consistency that makes it an ideal choice for automated or semi-automated dispensing. Dynaflow flux is a proprietary mixture of boric acid and fluoride compounds designed for optimum temperature activity and metal protection. Dynaflow flux is an excellent choice for use with silver braze alloys – Most AWS A5.8 BAg classifications and ISO 17672 class Ag compositions. The flux is also suitable for use with many phosphorus-copper-silver alloys, (AWS BCuP and ISO CuP), for brazing copper to brass.

Features

Excellent choice for use with silver braze alloys
Yields a smooth consistency
Good choice for automated or semi-automated dispensing
Formulation provides optimum temperature activity and metal protection
Works well with many phosphorus-copper-silver alloys (AWS BCuP and ISO CuP) for brazing copper-to-brass.
Activity range of 1050° F - 1600° F (566°C - 871° C)

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