I had a question about hardening with water.
I know some people say that if you fill your bath tub with hot water and soak the leather for about 15 minutes it will harden, but could leave black stuff in your tub.
My questions are: What are the full steps of hardening with water both hot and cold, and could i put a liner in my tub, perhaps just garbage bags duct taped together so then black stuff wont ruin the tub?
Also, maybe if someone wants to post all their links to tutorials for armor hardening, maybe then this thread could be stickied for anyone to easily find.