A high-grade, super-fine flux that keeps your metals cleaner during melts and pours. For melting, casting, and refining metals such as gold, silver, copper, iron, sterling silver, tin, nickel, and their alloys. Works as an antioxidant in soldering. Proudly made in the U.S.A. Reviews There are no reviews yet. Be the first to review “1 Lb Boric Acid Deoxidizing Casting Powder Flux for Melting Precious Metals” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.
