Geotech Filter Fabric 90 Wide per Square Foot
Geotech Filter Fabric 90 Wide
Nonwoven needle-punched geotextiles offer excellent water flow properties for drainage and other applications.
- Filter Fabric 90 Wide per Square Foot
- A continuous felt mat of polypropylene fibers
- Consistent filtration properties
- Consistent water flow properties
- Provides light-weight, low cost protection for geomembranes
- Prevent the loss of soil fines when wrapped around drains
- Allows high water flow rates
- Heavier fabrics can provide drainage in plane
- Used as a protective cushion for geomembranes
Needle-punched nonwoven geotextiles are made from polypropylene fibres that are tangled together in a needle-punching process. The fibres may be made in continuous or short lengths and achieve their strength by interlocking. Needle-punched nonwoven geotextiles have excellent water flow rates and are used for filtration of soil fines. Needle-punched nonwoven geotextiles have been used in drainage applications including trench drains (also known as french drains), as a wrapping for perforated pipe, for erosion protection, for the separation of a roads sub base and base course, and combined with three-dimensional structures to create prefabricated drains. They are also commonly used with geomembranes to provide a protective cushion. Needle-punched nonwoven primary functions: filtration; separation; protection; drainage.
Layfield provides sewing services for all types of geotextiles including nonwoven needle punched types. Please check with your representative for details on the sizes of nonwoven geotextile that can be sewn. Nonwovens are very bulky and handling limits are reached quickly.
We also sew custom items from non-woven textiles such as sediment control traps, silt bags, and many other unique items. Ask your representative for more information.
Although nonwoven geotextiles are made from a chemically resistant polypropylene material they are made from very small fibres. These small fibres have a large surface area that is adversely affected by many chemicals. In most soil applications the concentrations of any chemicals are not sufficient to cause harm to the geotextile. Where highly concentrated chemicals are encountered the geotextile will not be as resistant as might be indicated from a polypropylene chemical chart. For all chemical contact applications a test should be performed before using a nonwoven geotextile.