APP PP Fibre is a fibrillated synthetic polypropylene microfiber for concrete reinforcement, specifically designed to help mitigate the formation of plastic shrinkage cracking in concrete. Typically used at a dosage rate of 0.9 kg/m³ (1.5 lbs/yd³).

Key features

• Controls early plastic-shrinkage and settlement cracking
• Disperses in a 3D random network
• Acid and alkali resistant; non-magnetic, non-conductive
• Anti-static treated for dispersion

Specifications

Raw material	100% virgin monofilament polypropylene; colour bright white
Specific gravity	0.91
Diameter	30 µm
Available length	1–26 mm
Melting point	160 °C; ignition point: 590 °C
Electrical/thermal conductivity	low
Water absorption	<2%
Acid and alkali resistance	>95%
Tensile strength	600 MPa
Packaging	water-soluble film or paper bags, plastic bags, plastic buckets (customised)
Storage	cool and dry. Shelf life: 2 years in original unopened pack

Typical applications

• Concrete and shotcrete
• Cement mortar, plaster, wall putty, EIFS
• Precast
• Slabs, pavements, bridges, industrial floors