Paste is a combination of a brazing or soldering alloy that has been manufactured into a very fine powder, a suitable flux for the application, and a neutral liquid binder that holds everything together in a moderately thick paste.
Paste System
Description
Flux Working Range
Heat Source
T
F
I
R
F9A
Effective general purpose solder paste system for use when soldering silver, copper or tin-based alloys, and steel with low-temperature, tin-based solders.
250-700°F
121-371°C
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S100
This rosin based flux system is suitable for use where noncorrosive residues are desirable. Flux residues are noncorrosive and nonconductive.
380 - 800°F
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S310
Mild acid flux system suitable for soldering most clean base metals.
250 - 700°F
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S321
Moderately aggressive general purpose acid solder flux.
250 - 700°F
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S330
Our most aggressive solder flux, designed for use on stainless steel, galvanized, and tern plate steel.
250 - 800°F
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S380
Moderately aggressive general purpose solder flux. Contains no ammonium or zinc chloride.
