Polypropylene ropes is a synthetic rope that is used for many different task, and polypropylene rope is characterized by the fact that polypropylene rope float in water. Because polypropylene rope floats in water, polypropylene rope is useful for water-based activities such as water skiing or rescue operation. Polypropylene rope is often used because polypropylene rope are inexpensive, but you must understand the specific property of polypropylene rope to use polypropylene rope corectly.
You must match the thickness of the polypropylene rope to the specific task that you are performing. If you are performing light task, such as securing a tarp or a flag, you should use a thinner polypropylene rope because a thinner polypropylene rope is easy to handle and dont weigh much. If you are performing water-based tasks, you should use polypropylene rope because the buoyancy of the polypropylene rope ensure that the polypropylene rope stays on the surface of the water.
Choosing and Caring for Polypropylene Rope
If you choose a polypropylene rope that is too thin for a heavy load, the polypropylene rope may slip or the polypropylene rope may break. Polypropylene rope has different properties then nylon rope, polyester rope, and natural fiber rope. Nylon rope is good at absorbing shock because nylon rope stretch, but nylon rope sinks when nylon rope becomes wet.
Polyester rope is resistant to ultraviolet light, but polyester rope does not float as easy as polypropylene rope. Natural fiber ropes, such as manila rope, provide good grip for knots, but natural fiber ropes will rot if natural fiber ropes stays damp. Polypropylene rope is resistant to chemicals like pool bleach or fertilizers, and polypropylene rope floats in water, but ultraviolet light can damage polypropylene rope.
Because ultraviolet light damage polypropylene rope, the polypropylene rope will become brittle if you leave the polypropylene rope in the sun for a long time. The construction of the polypropylene rope affects how the polypropylene rope function. Three-strand twisted polypropylene rope is a common construction, and you can easily splice three-strand twisted polypropylene rope by hand, but three-strand twisted polypropylene rope may fray more quickly when three-strand twisted polypropylene rope rub against sharp edges.
Braided polypropylene rope, such as eight-strand braided polypropylene rope, moves through winches more smooth than twisted rope, and braided polypropylene rope is less likely to kink. Hollow braided polypropylene rope is a soft construction, so hollow braided polypropylene rope is suitable for use as a clothesline or a lane divider. The color of the polypropylene rope serves as a visual tool for safety.
Yellow polypropylene rope is highly visible in choppy water, so people use yellow polypropylene rope for throw lines. Orange polypropylene rope is used for rescue gear because orange polypropylene rope stands out against white foam. Blue polypropylene rope is used in swimming pools because blue polypropylene rope is less distracting to swimmers.
White polypropylene rope is used for general tasks, such as securing items on a trailer. The load capacity of the polypropylene rope increases as the diameter of the polypropylene rope increases. Thinner polypropylene rope can handle light utility load, but you should only use a fraction of the breaking strength as your safe working load.
If you use a safe working load that is only one-fifth of the breaking strength, you will have a margin of safety for unexpected snags or gust of wind. You should always consider the weight of the polypropylene rope because lighter polypropylene rope is easier to haul when you are carrying large coil of polypropylene rope. Ultraviolet light is a significant factor in the lifespan of polypropylene rope.
When polypropylene rope is new, the polypropylene rope is supple and strong. After one year of exposure to the sun, the strength of the polypropylene rope may decrease to seventy-five percent of its original strength. After three years of exposure to the sun, the polypropylene rope may become brittle and may crack when you bend the polypropylene rope.
If the polypropylene rope is five years old, you should replace the polypropylene rope because the polypropylene rope isnt safe to use anymore. You can inspect the polypropylene rope by running your hands along the polypropylene rope to feel for stiff spot or fuzz. Polypropylene rope has several limitations that you must consider.
Polypropylene rope has a low melting point, so friction from fast pulleys can melt the polypropylene rope. Polypropylene rope becomes slippery when the polypropylene rope is wet, so you should use stopper knots to prevent knots from loosening. Polypropylene rope has low abrasion resistance, so you should use a sleeve if the polypropylene rope rub against rocks.
You can extend the life of the polypropylene rope by storing the polypropylene rope properly. You should store the polypropylene rope in the shade so that the sun does not damage the polypropylene rope. You should keep the polypropylene rope away from hot engines, and you should inspect the polypropylene rope before you use the polypropylene rope.
For critical task such as rescue operations, you should of replaced the polypropylene rope every year to ensure that the polypropylene rope is safe. You should perform a bend test to check for cracks and run your hands along the full length of the polypropylene rope to check for cut.
