The MIRAFI®  S41 belongs to Solmax’s S-Series - a family of mechanically bonded, needle-punched nonwoven polypropylene geotextiles designed for separation, filtration, and drainage functions in road and infrastructure works.
Manufactured from 100 % UV-stabilized continuous polypropylene filaments, S41 combines high strength, flexibility, and hydraulic stability for long-term soil reinforcement and filtration performance.

With more than five decades of proven field use, MIRAFI® S-Series products provide reliable soil stabilisation, efficient drainage, and reduced aggregate consumption, ensuring longer service life and lower environmental impact.

Key Features & Advantages

• Mechanically bonded nonwoven: Delivers high tensile strength and puncture resistance during installation and service.

• Separation & stabilisation: Prevents intermixing of fine subgrade and coarse aggregate, maintaining layer integrity.

• Filtration & drainage efficiency: Ensures controlled water flow while retaining fine soil particles.

• Durability: Chemically inert and resistant to biological and alkaline attack.

• Sustainability: 100 % polypropylene, fully recyclable and environmentally safe.

• Certified quality: Produced under ASQUAL certification, tested in accordance with EN ISO 10319, EN ISO 11058, EN ISO 12236, and EN ISO 12956.

Applications

• Road and rail subgrade separation and stabilisation

• Working platforms and construction access roads

• Drainage trenches and leachate collection systems

• Landfill and reservoir liner protection layers

• Erosion control and slope stabilisation

• Filtration layers in retaining and embankment structures

Performance Summary (S41 Grade)

(Values per Solmax ASQUAL Technical Data Sheet, Rev 07/2023.)

Installation Guidelines (Summary)

1. Prepare the subgrade: Level surface; remove ruts > 100 mm.

2. Roll out geotextile: Place directly on the prepared area without tension.

3. Overlap or weld: Minimum 300 mm overlap (500 mm for soft subgrades); welding recommended for grades ≥ 200 g/m².

4. Repair damages: Patch with same grade geotextile overlapping ≥ 500 mm.

5. Place fill: Back-dump aggregate onto the fabric; avoid direct truck traffic.

6. Spread and compact: Use tracked equipment and vibratory rollers; target rut depth ≤ 30 mm.

7. Re-grade if required: Fill ruts with fresh aggregate only.

authorised Supply in Africa

Geosynthetics South Africa (Pty) Ltd is an authorised supplier  of Solmax MIRAFI® geotextiles throughout South Africa.

MIRAFI® and are registered trademarks of Solmax.
Geosynthetics South Africa (Pty) Ltd is an authorised distributor and installer of Solmax MIRAFI® products across Africa.
All technical data, brand references, and imagery are used under authorization.
Geosynthetics Africa does not claim ownership of the MIRAFI® or trademarks.