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

US / Canada Product Information

Data Sheet

Project with MasterFiber MAC 100 product

Direct contact

Master Builders Solutions Technical Support

Admixture Systems


Safety Data Sheet (SDS)

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Product Certifications

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MasterFiber MAC 100 Data Sheet

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