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Jewelers use Boric Acid Powder mixed with denatured alcohol in a glass alcohol cup to create an excellent deoxidizing flux and dip. This is typically used to prevent oxidation of sterling silver during soldering.
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Borax Pro-Craft 8 Oz Borax Flux: Keep Your Melts Clean and Safe
Our Price: $7.50
Sale Price: $7.13
You save $0.37!
Griffith Boric Acid, Powder Griffith Boric Acid Powder - 1lb.
Our Price: $9.50
Sale Price: $9.03
You save $0.47!