Polypropylene Rope 3 Strands Waterproof Vormann Ø 4 mm

Polypropylene is one of the three most common rope materials besides nylon and polyester. Polypropylene has a specific gravity of 0.91 and so it is lighter than water and FLOATS. Because it floats polypropylene is the rope of choice when used in the water. It is used for water-ski ropes and other small ropes used for utilitarian purposes. It is used extensively in the fishing industry. Because it floats it is not likely to get tangled in a motor prop.

Advantages

• IT FLOATS, That is the single best thing about it! This and the fact that it has some stretch makes it a good water skiing rope
• It is lightweight and easier to handle in thicker diameters.
• IT IS CHEAP compared to other ropes.
• Its quite INERT when exposed to chemicals and solvents. It resists acid, bases and solvents well.
• Resists rot and mildew.
• It is made into tan colored traditional looking ropes that appeal to Wooden and Traditional Boat enthusiasts. Not so cheap then.

Disadvantages

• Not the Strongest rope around. It is not recommended for safety ropes which might be exposed to high stresses.
• polypropylene is sensitive to UV degradation and will become brittle and weak if left in the sun.
• It is stretchy, about half of what nylon is. It could be stretched by 10-15% 
• Polypropylene is stiff and slippery and is notorious for coming undone because it slips out of knots and cleats. Several knots had to be developed to cope with this problem.

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