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    MasterFiber MAC 100

    Synthetic macrofiber

    How does MasterFiber MAC 100 work?

    MasterFiber MAC 100 product, a synthetic macrofiber, is manufactured from a proprietary blend of polypropylene resins, in compliance with ASTM C 1116/C 1116M. MasterFiber MAC 100 product is specifically engineered for use as shrinkage and temperature (secondary) reinforcement and provides excellent plastic shrinkage control and reduced settlement cracking.

    Recommended uses:

    • Industrial and warehouse floors
    • Commercial slab construction
    • Concrete pavement
    • White topping and overlays
    • Thin wall precast concrete
    • Shotcrete
    • Composite metal decks

    What are the unique features of MasterFiber MAC 100?

    • Tensile strength of 60,000 psi (415 MPa)
    • Meets the requirements of ASTM C 1116/C 1116M “Standard Specification for Fiber-Reinforced Concrete”
    • Uniform distribution throughout the concrete mixture
    • Excellent finishability
    • Excellent post-first crack performance

    What are the benefits of MasterFiber MAC 100?

    • Eliminates the need for welded-wire reinforcement (WWR) and small diameter bars used as secondary reinforcement, depending on the application
    • Effective tight crack control
    • Provides excellent plastic shrinkage crack reduction and settlement control
    • Improves green strengths – permits earlier stripping of forms with less rejection
    • Reduces construction time and overall labor and material costs
    • Increases flexural toughness, impact and shatter resistance​

    Direct contact

    Master Builders Solutions Technical Support

    Admixture Systems


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    LEED v4 & v4.1

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