Common   Color match          Use                   Comments
Name    to Stainless

Fifty-     Poor       Duct work, roofing, etc.    Satisfactory general
Fifty                  where appearance/special    purpose solder.  Not
                       joint properties not        for color matching.
                       important.

Sixty-    Fair         Signs, ornamental trim,    Best all-around tin-lead
Forty                  flashing, where appear-     solder. May discolor with
                       ance is more important.     time.  Has better wetting
                       Used for tinning.           and flowing properties
                                                   than 50-50 solder.
Pure      Good        Distilled water equip-      Low joint strength. Good
Tin                    ment or special chem-       corrosion resistance. Non-
                       ical use where lead can     toxic. Good color match.
                       not be tolerated.

Tin-      Good        Food handling equipment    Wide service temp. range.
Antimony               where lead must be avoid-  Good food contact solder.
                       ed. Refrigeration equip-   Non-toxic. Good non-stain-
                       ment to minus 160 F.       ing properties. Good joint
                                                  strength. Higher cost.
Tin-      Very Good   Food handling equipment,   Best color-match & blending
Silver                 fine ornamental work,      properties. Very good joint
                       high strength & other      strength. Non-toxic. Good
                       uses requiring special     corrosion resistance.
                       joint properties.          Highest cost.