No it doesn't. It actually states the opposite, i.e. that any material has at least some ability to return to its original shape after being stretched out.
What you want to prove is that latex is somewhat ductile, i.e. that it is capable of deformation beyond its elastic limit. In other words that you can stretch it out without it breaking and let go without it rebounding to its original shape.
What you want to prove is that latex is somewhat ductile, i.e. that it is capable of deformation beyond its elastic limit. In other words that you can stretch it out without it breaking and let go without it rebounding to its original shape.