Monofilament fibres: Crackstop M

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The Adfil micro synthetic concrete reinforcement portfolio includes a range of high performance monofilament polypropylene fibres marketed under the brand name Crackstop M. These serve as an alternative to crack control mesh. As such, the fibres enhance the surface properties and durability of cementitious products, significantly reducing the occurrence of plastic shrinkage and plastic settlement cracking.

Crackstop fibres are extremely fine, single filaments, cut to various lengths dependent on application, maximum aggregate size considerations and surface appearance requirements. For optimum dispersion and bond within the concrete the fibres are coated with surfactant. Unlike steel reinforcement, Crackstop fibres are not readily seen on the hardened surface, but make for a perfect finish of the final product.


  • Increased abrasion properties
  • Enhanced impact resistance
  • Improved freeze/thaw resistance
  • Substantial reduction of plastic shrinkage cracks
  • Less plastic settlement
  • Reduced bleeding
  • Lowered water and chemical permeability
  • Reduced explosive spalling in fire


  • Improves safety on site
  • Requires only very limited storage space
  • Easy to use - low chance for misplacement
  • Offers great design freedom
  • Environmentally friendly thanks to substantial reduction of carbon emission
  • No corrosion as with steel reinforcement
  • High alkali, acid and salt resistance


Indoor floors
Beam & block floors
External hardstandings
Track slabs
Precast slabs
Road barriers
Segmental linings
L-shaped elements


Brochure Crackstop M
Leaflet Crackstop M synthetic micro fibre