Soft solder fluxes are available in forms with both corrosive and intermediate/low corrosivity residues. They can be used on copper, copper alloys, carbon steel and stainless steel.

Soft Solder Fluxes

Expand IconSoft Solder Flux 1S
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 Working Range
 180 - 350°C
Soft Solder Flux 1S is a highly active liquid flux recommended for use on stainless and carbon steels, and is active up to 350C where it possesses good wetting and spreading properties. The flux may also be used on non-ferrous alloys where there is a need for an active flux.
Expand IconSoft Solder Flux 2S
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 Melting Range
 180 - 350°C
Soft Solder Flux No. 2S™ is a flux with reasonable wetting properties up to 300C. It is particularly effective with the tin based soft solders such as P5™ and LMl0A™.Soft Solder Flux No. 2S™ is a liquid intermediate / semi-corrosive flux for use on copper and brass.
Expand IconSoft Solder Flux 3S
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 Working Range
 180 - 350°C
Soft Solder Flux No.3S™ is a paste flux active up to at least 350C.It is widely used on carbon and stainless steel with solders such as P5™ and LMl0A™ and is effective on copper and brass with all solders including LM5™ and A5™.