Polypropylene is the most economical, lightweight, and well suited plastic strapping for most light to medium weight bundling and light palletizing applications. This product offers higher elongation, but tends to have irrecoverable dead stretch with constant stress.
Polyester is rapidly replacing steel for medium to heavy duty unitizing and palletizing applications. Polyester has the highest retained tension of the four kinds. This type provides excellent retained tension on rigid loads and its excellent recovery properties help a load absorb impact without strap breakage. It also retains tension over a longer period of time.
Polyester Cord operates like a flat rope because it's very portable and no tools are necessary. Cord comes in three types; bonded, woven, and composite. Bonded is the most economical while woven has bi-directional fibers for greater split resistance. Composite cord is polyester fibers coated with a clear polypropylene layer.
Nylon is almost entirely not used anymore. It used to be famous for its high cost and highest tension recovery. Today, less expensive polyester has all but totally replaced nylon.
Now that you understand the differences between each type, shop our full line of straps, tools and accessories.