What ropes will sink in water?

Ropes made from synthetic materials, such as polypropylene, typically float on water due to their low density. In contrast, natural fiber ropes, like those made from jute, sisal, or hemp, may absorb water and become heavy, causing them to sink. Additionally, ropes that are heavily weighted or have metal components can also sink. The buoyancy of a rope ultimately depends on its material composition and density relative to water.