Polypropylene Fiber

Short Description:

Polypropylene staple fiber Function :

Crack resistance of concrete

To improve concrete impermeability

To improve freeze-thaw resistance of concrete

Improve impact resistance and toughness of concrete

To improve the durability of concrete

  • Raw material: polypropylene
  • Type: Monofilament
  • Cross-section shape: trilobal or roundness
  • Fiber dia: 25~45μm
  • Density: 0.91~0.93g/cm3
  • Color: Natural (white)
  • Tensile strength : >350Mpa  
  • Crack elongation: ≥15%
  • Elasticity modulus: ≥3000 Mpa
  • Melting point: 160~180℃
  • Water absorbency: No
  • Thermal conductivity: low
  • Resistance to Acid, Aljali: ≥95%  strong
  • Note: length size 3 6 10 12 15 19mm, as customer’s requirements
  • Product Detail

    Product Tags

    Polypropylene fiber for concrete is a polypropylene as the main raw material,adopting unique manufacturing process to make high strength bundle monofilament fiber.Join concrete(or mortar)can effectively control concrete(or mortar)micro-cracks which is caused by plastic shrinkage,temperature changes and other factors,to prevent and inhibit the formation and development of cracks,greatly improved crack resistance of concrete,impact resistance and seismic capacity.

    Raw Material Polypropylene Crack Elongation ≥15%
    Fiber Type Monofilament Elasticity Modulus ≥3000Mpa
    Melting Point(C Deg.) 160-170 Fiber Diameter 25-45um
    Acid & Alkali Resistance Strong Tensile Strength 350 min
    Water Absorbency NO Density 0.91-0.93g/cm3


    1. Easy to be dispersed in mortar or concrete and no agglomeration, it can guarantee the property of crack resistance effectively

    2. Easy to be used: No need to change the proportion of mortar, just put the fibers into the mortar mixture and stir for a moment after adding water.

    3. It with fine economic property: The equivalent diameter of PP monofilament is only φ 0.03mm, so the ratio of diameter and surface area is high and on the basis of crack resistance, it can reduce the amount (to about 0.6kg/m 3 ).

    4. Easy to plaster: As the great number of thin fibers spread into mortar evenly, the plastering is much easily and this can improve the binding strength between surface and base.

    5. It with stable chemical property, strong acid &alkali resistance, and can be used in any engineering projects.

    Applying Instruction :

    Length: for motor, <12mm; for concrete: >12mm

    Compounding amount: for resisting the common cracks on surface,0.9kg/m3 fibers to cement mortar are enough.

    Stirring requirement: the proportion of cement, sand and aggregate is no need to be changed. Put cement, aggregate, additive and fiber together, then stir after adding enough water and time for stirring can be prolonged for 2-3 minutes in order to make the compound mix completely. Also it can be mixed even with cement and other aggregates in advance, stirring by adding water at worksite before constructing.


    The products are encapsulated in polypropylene woven bags with polythene inner bags coated with plastic, with a net weight of 20kg per bag.Pay attention to rain and sun protection during transportation.


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