MIRAFI® F Series Nonwoven Geotextiles

Geosynthetics Africa supplies MIRAFI® F Series nonwoven geotextiles, manufactured under license by Solmax, a global leader in geosynthetic solutions. MIRAFI® (and Bidim®) are registered trademarks of Solmax, and Geosynthetics Africa distributes them under authorized agreement — Geosynthetics Africa is not the trademark owner.

The MIRAFI® F Series (also referred to internationally as MIRAFI® Bidim® F) is a dual-layer continuous filament nonwoven geotextile composed of two distinct functional layers: one layer is engineered primarily for filtration, while the other is designed to protect the filtration layer from damage.

This innovative two-layer architecture enables optimum hydraulic performance within the filter layer, delivering extremely low clogging risk and high soil retention security.

In South Africa, Geosynthetics Africa markets this product line as MIRAFI® F Series, emphasizing our commitment to high-quality, virgin-polypropylene nonwoven geotextiles that conform to international standards. This also helps to distinguish it from other nonwoven products sold locally, which may use recycled polyester or lower-performance constructions.

In markets across Africa (outside South Africa) and globally — including the Americas, Europe, and Australia — the same Solmax-manufactured geotextile is commonly specified as MIRAFI® Bidim® F Series. This dual naming convention ensures that international engineers and specifiers can recognize the product while maintaining brand and compliance clarity in South Africa.

Why Virgin Polypropylene Outperforms Recycled Polyester in Drainage

Drainage systems rely on predictable hydraulic behaviour. Recycled polyester geotextiles often vary in pore size and fibre quality, leading to inconsistent filtration and flow rates. By contrast, virgin polypropylene Mirafi® F offers:

• Consistent permittivity: Reliable water flow under sustained hydraulic gradients.

• Uniform pore structure: Effective soil retention without clogging surprises.

• Superior durability: Resists puncture and tearing during placement with angular aggregates.

• Chemical and biological resistance: Stable performance even in aggressive soils and leachates.

• Predictable specification: Engineers don’t need to adjust thickness or grade—properties are dependable across batches.

This predictability saves time, reduces re-work, and ensures the drainage system performs as designed.