Rosenthal Collection Borax Flux 5 MOL – ½ LB Casting Flux for Jewelry Soldering, Melting Silver, Gold, Sterling

When you're casting precious metals, there’s no room for error. Rosenthal’s Borax Flux is the trusted flux powder that serious jewelers rely on to ensure every melt flows clean and finishes smooth.- Sourced for purity and performance- Reduces oxidation and bubbling during heat- Ideal for casting gold, silver, and sterling- Packaged for pro-level use, resealable for freshness- Backed by nearly a century of expertiseWhether you’re running a full shop or mastering your bench at home, Rosenthal gives you the confidence to cast with clarity.

• CLEAN METAL MELTING, NO HASSLE — Professional-grade flux that promotes smooth flow, reduces oxidation, and protects your metals during every melt
• OPTIMIZED FOR GOLD, SILVER, STERLING — Formulated for jewelers working with precious metals who demand clarity and clean burn-off
• RESEALABLE BAG, PRO STUDIO SIZE — Perfect for high-volume jewelers who need reliability without frequent reorders
• REDUCES OXIDATION, PRESERVES VALUE — Maintains metal purity and finish, saving you costly rework and time
• TRUSTED SINCE 1926 BY MASTER JEWELERS — From the Miami bench to global shops, Rosenthal delivers pro-grade casting support