Tape gives stiff upper lip to turned bowls
It's a challenge to turn a wooden bowl with thin walls and remove interior stock without cracking or breaking the bowl's outside edge.
After turning the lip of the bowl, reinforce the lip with a strip of masking tape. Make sure the tape doesn't unravel by wrapping it in the direction opposite of the rotation of your lathe.
—David Arnall, Berkeley Vale, New South Wales, Australia