Paste Brazing Fluxes

Fluxes for Fusion Paste Brazing Alloys have been formulated to complement high-speed, automated brazing operations where quick removal of tenacious surface oxides at high temperatures is required. Generally, brazing fluxes exhibit a highly corrosive nature. Thus, their residue after brazing should be removed whenever possible.

* Filler metal selected must have a liquidus temperature within the fluxing range specified.

Paste Brazing Fluxes

Flux

Fluxing Range*

Suggested to
Remove Residue

Recommended for Use With*

Silver Base
Filler Metals

Copper/Phos.
Copper/Silver
Phos.
Filler Metals

Copper/
Zinc
Filler Metals

STL

1000-1600°F
538-871°C

Acid or
alkaline cleaner

Yes

Yes

No

APW

1000-1600°F
538-871°C

Acid or
alkaline cleaner

Yes

No

No

STK

1000-1700°F
538-927°C

Acid or
alkaline cleaner

Yes

Yes

No

STN

1000-1700°F
538-927°C

Acid or
alkaline cleaner

Yes

Yes

Yes

LHK

1000-1700°F
538-927°C

Acid or
alkaline cleaner

Yes

Yes

Yes

WSK

1000-1700°F
538-927°C

Acid or
alkaline cleaner

Yes

No

Yes

WSP

1000-1700°F
538-927°C

Acid or
alkaline cleaner

Yes

No

Yes

DMX

1100-1700°F
593-927°C

Acid or
alkaline cleaner

Yes

Yes

Yes

BMW

1600-1900°F
871-1038°C

Acid or
alkaline cleaner

No

No

Yes

BMA

1600-1900°F
871-1038°C

Acid or
alkaline cleaner

No

No

Yes


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