Polypropylene Monofilament Fiber is a synthetic fiber made from 100% virgin polypropylene resin. It is widely used as a secondary reinforcement material in concrete and mortar applications, providing enhanced crack resistance, durability, and long-term structural integrity. This fiber is designed in a monofilament (single-strand) form, which makes it ideal for reducing plastic shrinkage cracks and improving overall performance in cementitious materials.