SAL-AMMONIAC BLOCKS
Solid Sal-Ammoniac is Used for Tinning Soldering Coppers Fast!
Blocks Available in 1/4, 1/2 and 1 Lb Sizes, Individually Boxed.
This form of ammonium chloride has been used to promote rapid tinning of soldering irons and forged soldering coppers.
Only when using well-maintained soldering irons will the solder being used, flow off the tip to properly fill sheet metal seams.