Geotextile TechnoNICOL TechnoNICOL geotextile materials TechnoNICOL Geotextile 500 g/m2 TechnoNICOL heat-treated needle punched geotextile is a nonwoven fabric from polypropylene fibers, weighing 500 g/m2. TechnoNICOL Geotextile 300 g/m2 TechnoNICOL heat-treated needle punched geotextile is a nonwoven fabric from polypropylene fibers weighing 300 g/m2.