Borax Flux 8 oz. Container, White

I'm an amateur and tried casting lead ingots for the first time. I think I used too much borax, should I use borax at all with lead? Also this black crud is

Jewelers Equipment Tools and Supplies

Borax 1/2 Pound Container Melting Flux 8 Oz. to Glaze Crucible Dishes for Gold Silver Jewelry by JTS

Harris Borax Laundry Booster and Multipurpose Cleaner, 1.5lb - PF Harris

I'm an amateur and tried casting lead ingots for the first time. I think I used too much borax, should I use borax at all with lead? Also this black crud is

The Forney 37250 Brazing Flux is an excellent flux that cleans well to allow for good, solid brazing jobs. Borax type and excellent for cleaning flux for use with all flame torches. Comes in easy to use, re-sealable tube. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets.

Forney 37250 Brazing Flux, 1/2 lbs

Anti-Borax Brazing Flux - 1 lb can

Forney 8 Oz. Brazing Flux, Paste - Town Hardware & General Store

Borax

The Forney 37250 Brazing Flux is an excellent flux that cleans well to allow for good, solid brazing jobs. Borax type and excellent for cleaning flux for use with all flame torches. Comes in easy to use, re-sealable tube. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets.

Forney 37250 Brazing Flux, 1/2 lbs

Soldering Flux at