Fluxes for the Aluminum Industry
General Cleaning and Drossing Fluxes
AlucoFlux AL – A very hot aluminum drossing-off flux.
Some smoke may result from its use. Also, acts as a mild furnace
or ladle wall cleaner when worked into build-up
AlucoFlux GD – A fast-acting, reduced smoke, and hottest
drossing-off flux. It is used for all aluminum alloys except
aluminum-magnesium. Will act as a mild furnace wall cleaner when
worked into build-up.
AlucoFlux GD2 – A low-smoke, drossing-off flux for all
aluminum alloys. Recommended when melting alloys containing
strontium. Can be used on crucibles and reverberatory furnaces.
Does not encourage burning of removed dross.
AlucoFlux GD3 – The lowest smoke-generating drossing-off
flux for all aluminum alloys. Can be used on crucibles and
reverberatory furnaces. Does not encourage burning of removed
AlucoFlux GD5 – A low-smoke cover and drossing flux for
reverberatory furnaces. Reduces metal oxidation during meltdown
and promotes separation from dross.
AlucoFlux DS2 – A low-smoke cover and drossing flux for
reverberatory furnaces. Similar to AlucoFlux GD-5
AlucoFlux GRC – A drossing-off flux for aluminum.
Designed especially for low temperature situations.
Fluxes Designed for Aluminum-Silicon Alloys
AlucoFlux HS – A high silicon-aluminum cover and
drossing flux. Serves as an excellent cover for all aluminum
alloys, except aluminum-magnesium alloys. Especially good for
aluminum-silicon alloys. Some sodium pick-up for modification will
occur. Also, AlucoFlux HS will act as a mild furnace wall cleaner
when worked into build-up.
Fluxes Designed for Aluminum-Magnesium Alloys
AlucoFlux HM – A high aluminum-magnesium cover and
drossing flux. For aluminum alloys containing high magnesium (2%
to 10% Mg). It is sodium-free and mainly used in crucibles.
Fluxes Designed for Sodium-Free Reactions
AlucoFlux SF – AlucoFlux SF is an alkaline-based,
sodium-free flux and has the effective nature of a
fluoride-containing compound for drossing. It is a
smoke-generating cover flux for all aluminum alloys, especially
silicon-aluminum. It is used as an exothermic cover and drossing
flux for aluminum-magnesium alloys melted in reverb furnaces.
AlucoFlux SF will promote an improved separation of the dross and
the molten aluminum and will not lead to sodium pick-up. AlucoFlux
SF is a powerful, reactive flux that can affect the modification
of the aluminum. It also will act as a mild flux to gain control
over the formation of insoluble build-up.
AlucoFlux SFM – AlucoFlux SFM is a sodium-free,
calcium-free mildly exothermic cover and drossing flux for
Aluminum Magnesium alloys (2% to 10% Mg). It is very effective in
separating dross from metal in reverberatory furnaces, but can be
used in crucibles when low fume evolution is important. AlucoFlux
SFM is designed to allow aluminum cast shops a foolproof method to
create dross and minimize oxidation of the magnesium in the molten
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