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DuPont™ Spunbond Nonwoven Geotextiles


What is the difference between spunbonded and needlepunched nonwoven geotextiles?

Needle punched nonwoven fabrics are made from blended webs of continuous or staple filaments that are passed through banks of multiple reciprocating barbed needles. The fabrics derive mechanical coherence from the entangling of fibres caused by the barbs on the reciprocating needles; these fabrics thus resemble wool felts. Spunbond fabrics are produced by depositing extruded, spun filaments onto a collecting belt in a uniform random manner followed by bonding the fibers. The fibers are separated during the web laying process by air jets or electrostatic charges. Bonding imparts strength and integrity to the web by applying heated rolls or hot needles to partially melt the polymer and fuse the fibers together.

What is the advantage to using a spunbond geotextile?

The main advantage offered by spunbonded nonwoven geotextiles is higher tensile strength per unit of mass (weight) when compared to a needlepunched nonwoven. However, you do sacrifice a little of the flow rate.

Are your products Typar?

No. US Fabrics distributes the DuPont™ SF line of nonwoven spunbond geotextiles. You can check the Product Equivalent box at the top of the page to compare our products with Typar®.

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DuPont™ Spunbond Nonwoven Geotextiles

Exclusive Distribution of DuPont™ SF Geotextiles

US Fabrics is the exclusive distributor in the United States and Canada for DuPont™ SF spunbonded, nonwoven geotextiles. DuPont™ geotextiles have been used to solve global engineering and construction challenges for decades.

Since being introduced in the 1960’s spunbonding has become one of the most popular methods of producing nonwoven fabrics. During the spunbonding process extruded filaments are spun onto a collecting belt and bonded by applying heated rolls.

DuPont™ Patented Process

DuPont™ SF geotextiles are composed of thermally bonded, continuous, polypropylene filaments. During the fiber extrusion process, thousands of tough, superfine continuous filaments pass through a patented “pre-stretch” stage and are directionally oriented into a sheet that is thermally and mechanically bonded. This patented production technique is one of the main reasons for the unique properties and uniform quality of SF spunbondeds compared to other geotextiles.

Spunbonded Nonwovens Stronger & Tougher

Ounce for ounce, spunbond geotextiles deliver more tensile strength and tear strength than needle-punched nonwovens. Spunbond geotextiles outperform needle-punch nonwovens in resisting installation damage, which results in a longer service life.

Equals to Typar®

DuPont™ was the original manufacturer of the Typar® geotextile line. That product line is now made by the Typar® company in Old Hickory, TN. The current DuPont™ SF product line offers equals to most Typar® nonwovens. See our Product Equivalent box at the top of this page.

  • Exclusive DuPont™ SF Distributor
  • Quality Spunbonded Nonwovens
  • Superior Tensile Strength Per Weight
  • Uniform Weights and Properties
  • Equals to Typar®

Highest Quality & Standards

DuPont™ products are submitted to several voluntary certification systems ensuring the highest quality. These stringent quality requirements ensure that only the highest quality products are available for purchase. US Fabrics is pleased to be the exclusive distributor of DuPont™ geotextiles. Call us today for pricing and availability.

If you wish to purchase DuPont™ nonwovens overseas please go here for more information.