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    MasterFiber M 70| Synthetic Monofilament Microfiber

    How does MasterFiber M 70 concrete fiber additive work?

    MasterFiber M 70 is a monofilament polypropylene fiber manufactured from 100% virgin homopolymer polypropylene resins. This residential concrete fiber additive meets the requirements of ASTM C 1116/C 1116M, Section 4.1.3, Type III, and Note 2 and the requirements of ICC ES AC32 Section 3.1.1 (plastic shrinkage reinforcement).

    MasterFiber M 70 product disperses well in the concrete mixture, and visible evidence of a superior finishability makes it a good candidate for all residential concrete applications.

    Recommended residential concrete applications:

    • Sidewalks
    • Decks
    • Patios
    • Residential driveways
    • Pool decks
    • Extruded curbs and gutter
    • Basement and garage floors
    • Stucco

    What are the unique features of this monofilament fiber?

    MasterFiber M 70 is formulated to meet key industry performance standards. Among concrete fiber additives, MasterFiber M 70 is an outstanding choice when a high-quality finish and minimal cracking are critical.
    • Meets the requirements of ASTM C 1116/C 1116M, Section 4.1.3, Type III, and Note 2
    • Meets the requirements of ICC ES AC32 Section 3.1.1 (plastic shrinkage reinforcement).
    • Excellent distribution of monofilament fibers throughout concrete
    • Excellent finishability of concrete
    • Excellent reduction in plastic shrinkage cracking

    What are the benefits of MasterFiber M 70 synthetic fibers?

    MasterFiber M 70 modifies macro- and micro-cracking mechanisms and reduces plastic settlement. Its monofilament fibers produce concrete with extended service life that needs less maintenance and has enhanced resistance to impacts and surface abrasion.​
    • Modifies macro- and micro-cracking mechanisms
    • Reduces plastic settlement
    • Extends service life with reduced maintenance
    • Enhances impact and surface abrasion resistance​

    Direct contact

    Master Builders Solutions Technical Support

    Admixture Systems

    1-800-628-9990

    Safety Data Sheet (SDS)

    Find all available safety data sheets for this product.

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    LEED v4 & v4.1

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    Related Literature

    MasterFiber M 70 Data Sheet

    pdf (219.95 Kb)

    MasterFiber M 70 Data Sheet (French)

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    MasterFiber M 70 SDS

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    MasterFiber M 70 SDS

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    MasterFiber M 70 SDS

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    MasterFiber(TM) M70 1/4" SDS

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    MasterFiber(TM) M70 1/4" SDS

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