Borax is a natural mineral that has been used for many years to clean, soften and polish. Borax is a great way to remove rust from your forged metals and is also an effective de-greaser. Borax can also be used to reduce the amount of heat needed when working with your metal
Borax can be used on any type of metal including aluminum, stainless steel, brass, copper and many other metals. Just remember that it will take longer to heat up the borax before using it on your metal than if you were using water alone
Borax has many different uses including
Cleane
Polis
De-grease
Rust remover
what does borax do to metal while forging