Geotech fabric can be used for a variety of applications. Such as french drains, drain fields, erosion control, separation and stabilization, as well as many more. It is normally made from a Polypropylene blend and is sold as either a non-woven or woven fabric. The polypropylene material is specially formulated to resist ultraviolet light deterioration and is inert to commonly encountered soil chemicals. The fabric will not rot or mildew, is non-biodegradable, and is resistant to damage from insects and rodents.
For the non-woven fabrics listed here you will find fabrics from a 3oz to a 16oz fabric. This indicates that the weight per square yard of the fabric is the ounce weight. The lighter the fabric the higher the flow rate and the heavier the fabric the stronger it is but the flow rate goes down as the strength increases.
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