ECA Polyfiber F12 is a high performance micro polypropylene fiber developed as a crack controlling additive for cementitious materials. It is available in two grades, designated by its fiber length, 12mm for concrete, and 6mm for mortar. It is used to inhibit the formation of small cracks which can occur through plastic shrinkage, premature drying and early thermal changes, in order to provide utilization of the intrinsic properties of the hardened cementitious material. ECA Polyfiber F12 is based on selected raw materials and manufactured under controlled conditions to give a consistent product. ECA Polyfiber 12mm fiber length is designed for cementitious mixes, which exhibit, a maximum aggregate size greater than 5mm (i.e. Concrete, etc.), and ECA Polyfiber 12mm fiber length, for cementitious mixes exhibiting maximum aggregate sizes of less than 5mm (i.e. Mortar, etc.).


Specifically designed for crack control in cementitious materials covering areas such as ready-mix concrete, precast concrete, screeds, conventional shotcrete, rendering mortars, etc. Principle uses of fiber concrete include: concrete slabs, pavements, driveways, imprinted concrete, curbs, pipes, grouts, shotcrete, overlays, patch repair, microsilica concrete, thin section walling, water retaining structures, marine concrete, heavy industrial floors, etc.


• Inhibits intrinsic cracking in concrete

• Disperses uniformly throughout the mix

• Improves finishing characteristics

• Improves concrete durability

• Increases impact and abrasion resistance

• Rustproof

• Impervious to alkali attack

• Decreases construction time and labour

• Reduced risk of subsequent damage