I am tinkering with a container design, I would like for it to be at least "leak resistant" if I dont end up with watertight. (I know how hard that can be). I have the same material for lid and container, and I was wondering if I should allow for the same amount of shrinkage on both.
Another way to ask is this: Will they shrink a little differently because of the different shape of lid/container?
Material is PP, and it is a thermoform container.