MacTex^® geotextiles are polypropylene woven or non-woven needle punched product widely used in construction as a separation, filtration, protection, or reinforcing layer.

MacTex^® can be used as a separation layer between two different materials. A typical application would be between a soft subgrade, and a good quality granular fill above. Without the geotextile, the soft subgrade would contaminate the granular material, weakening it.

When used as a filtration layer, MacTex^® allows water to pass through it, but does not become clogged by fine material carried in suspension by the water. A typical application would be surrounding a drainage medium, for instance in carriageway drainage. By stopping fines entering the drainage gravel, the drain does not become clogged, and stop working.

When gabions or Reno mattresses are used in water courses, or environments where water flows are prevalent, it is good practice to include MacTex^® between the structure, and the in-situ ground. Water flowing through a gabion or mattress, could loosen and carry fine material from the ground beneath and behind the structure. This washout could cause settlement of the ground. The MacTex^® will filter out the fine material, yet allow the water to continue flowing through the structure.