CORDA 1/2 in. x 100 ft. diamond braid poly rope is a great all-purpose rope on a reusable winder. Use around water. Because of its light weight, polypropylene (poly) is the only rope which floats, and for this reason is very popular for use as pool markers and water sports. Poly is affected by sunlight deterioration (more so than any other synthetic or natural fiber rope), but its life can be extended by storing it away from direct sunlight. Poly begins to weaken and melt at 150°F, the lowest melting point of all synthetic ropes. It is not as strong as nylon or polyester, but 2 to 3 times stronger than manila. Because poly is less expensive than other fibers, it is the most popular all-purpose rope for the average consumer.