Which type of line floats?

Polypropylene is a type of line that floats because of its lightweight and specific material properties, which create a buoyant effect. This floating characteristic is particularly advantageous for certain marine activities, such as fishing and navigating in shallow waters where retrieval may be necessary. The structure of polypropylene fibers traps air within the material, allowing the line to remain on the surface rather than sinking.

On the other hand, other materials like Dacron, nylon, and old manila tend to have different densities and absorb water or are simply denser than water, which causes them to sink. Understanding the characteristics of various line materials is crucial for boat operators and helps in selecting the right equipment for specific activities on the water.