ChannelFlux® ZA-3

This proprietary zinc alloy is a general purpose aluminum brazing alloy, and is a secondary choice to ZA-1 when brazing Al-Cu (tight difference between melt-flow points, very low melt-flow temperatures). It offers very low alloy shrinkage and as such, low porosity.

Also a low temperature brazing alloy, this material has no aluminum. An addition of copper to the zinc makes this alloy a very effective solution for hand brazing as well as where fit-up is less than ideal. It is also very effective for the repair of higher temperature alloys.


Benefits Easy to Use
Flux and Alloy in One Rod
Non-corrosive flux
Low Temp Alloy - 900º F
No Damage to Base Metals
Automotive Radiators
Heater Cores
Charge Air Coolers
Solidus 788 ºF
420 ºC
Liquidus 824 ºF
440 ºC
Spooled Wire Twenty lbs per twelve inch spool
Standard Rod Length 20 in
Preforms Custom Shapes 
Flux Cesium
Flux Content 14 percent


A-Coil Repair
Copper to Aluminum


Download SDS Sheet

Bellman-Melcor distinguishes itself as a provider of premium quality brazing alloys at industry competitive prices. Our extensive inventory of brazing and soldering alloys ensures that in most cases your order can be available for immediate delivery.

Compare With


  • Brazing Temperature Range High: 865 F / 463 C
  • Brazing Temperature Range Low: 824 F / 440 C
  • Liquidus: 824 F / 440 C
  • Solidus: 788 F / 420 C



The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances. The company and product names referenced herein are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.

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