I blacksmith at my house on my own coal forge and i want to weld some stuff together in the forge and i have heard of using borax and i tried it but it doesn't do a very good job and i just want to find a good flux to use. Hope someone can help!
The Blacksmith's Craft, A Primer of Tools and Methods
Choosing a Fuel There are many options for fueling your forge. Coal is the best
choice, because it'll produce enough heat (3,000°F or so) for forge welding
without burning up fast. Charcoal is less satisfactory, and commercial charcoal ...