EN ISO standards define filtration as the process that is used to retain the particles of the ground subject to hydrodynamic forces and allow the passage of fluids within the geotextile. The opening characteristic of the pores of Hipertex is designed precisely to retain the particles and allow free movement of the water.

Without this condition, the migration of the soil could reduce the bearing capacity of the construction. Hipertex has replaced the classic filters drainage gravel in the drainage trenches along the river banks, in reservoirs, in the foundation walls, and athletic facilities. Our articles are designed to allow liquids to pass in the draining systems as in the micro pore tubes and at the same time help to retain the finer particles while avoiding their migration into the drainage.