Compare white FB3-A and black FB3-C paste fluxes by activity range and container size. White references include 6.5 oz, 7 oz and selected 1/4–60 lb packs; black references include selected 1/2–60 lb jars and pails. Select liquid or gel binders separately under Brazing Binders & Cements.
Configure your requirementsSizes & capacities
Compare published specifications for each configuration, then select a reference or enter your own requirements. Supply and the final configuration are confirmed in the quotation.
Reference paste and source-listed container size. Activity range describes flux behaviour during brazing. Specify the filler alloy, base metals and heating cycle to select the flux for your application.
Your specification
Enter the capacity and site requirements you need. Your selections carry into the RFQ and remain editable before submission.
Specify both base metals, exact grades, joint geometry and heating process. Phosphorus-bearing filler references are not for steel or other ferrous metals; flux selection depends on the exact materials and process.
Choose a documented reference or enter your own requirement. Reference melting points and flux activity ranges are different from finished-joint service limits. Confirm the exact supplied alloy, flux, procedure and current safety documentation.
Reference facts remain separate from requested geometry, temperature, packaging and certificates. Nickel/aluminium and other specialist alloys, binder formulations and unlisted sizes can be requested; they are not established by the shown references.
