1.Characteristics/Chemistry Polypropylene Fiber is a kind of high intensity bunchy mono- filament fiber mainly made of polypropylene by special technique, which could effectively prevent concrete micro-crack, as well as improve concrete performance of anti-crack, anti-infiltration, anti-concussion and anti-shock. 2.Material:Polypropylene Type:Bunchy mono-filament Color: White Identical Diameter(µm):16/18/25/35/other Elongation at Break(%): 15 Lengthmm:3/6/9/12/15/19/50±1 Modulus of ElasticityMPa3500 Tensile Strength MPa)450 Densityg/cm3:0.91~0.93 Acid & Alkali Resistance: Strong 3.Application ï?¬Polypropylene fiber into concrete or mortar, could effectively prevent temperature change and Micro-crach which is caused by palstic and dry shrinkage. ï?¬Projects like concrete road,bridge,airport road and factory floor which strictly require cracking resistance. ï?¬PP Fiber is widely used in roads, bridges, underground waterproof projects and roof, walls, pools, basements of civil construction industrial. 4.Packing (1).24kg plastic bag.600grams*40bags inner. (2).Bulk package. (3).As clients requested. 5.Storage To be stored in its closed original package,keep cool and dry, avoid humidity.