Why is plastic so hard to repair when it breaks?

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To be clear, I’m not asking how to repair it, I’m just trying to understand in general terms why it is so difficult to repair effectively when on paper it seems like typically an easier material to work with than wood or metal (both of which are fairly trivial to repair).

Flagging this post as chemistry because I suspect that’s part of the answer, but it might very well be a physics problem instead.

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Anonymous 0 Comments

Plastics have their stretchy/bendy properties because they’re made up of big tangled chains of complex molecules.

It’s kinda like trying to repair a broken piece of wood or better yet fabric.

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