Re: mould over gum
Don and Loris,
I add a "squirt" of thymol solution to my gum when I mix it up. No mold.
I add a tiny amount of sodium azide to my gum solution, because I dislike the smell of thymol.Thyme water? (Which contains considerable amnt. of Thymol)
Here the problem is not to prevent, but to kill and -I think- wash off the mould.
Maybe some products for wall paints?
p.s.: sorry for the my triple posting. My first message took 22 hours to travel from Italy to Canada!