Description

Batterns Flux.  For over 50 years, the proven standard of quality. Makes hard soldering as easy as soft soldering. Use on gold, silver, platinum and other metals with high melting points. Preserves temper and color of metal and the adhesive qualities of this liquid flux hold solder in place.

Some jewelers prefer liquid flux since it is reasonably transparent and doesn’t obscure the solder seam during heating.  Liquid flux also has a wider temperature range than paste (1100°F to 1700°F).  It’s disadvantage is that liquid flux offers only minimal protection from fire scale.

Safety Note:  This product contains boric acid.  Use good ventilation and/or a respirator while soldering.  Solder and flux can create hazardous fumes.