Made from clean, high-tensile-strength polyester, this polyester cord resists acids, alkalies, and moisture. The ends may be fused to prevent fraying. This polyester rope is optimal for drawstrings and in hems of synthetic tarpaulins. It's a preferred choice for boating and awning line. 3/16-inch Solid Braided Polyester Cord #6 comes in a 1000-foot roll.