Geotextile Woven Geotextile
High-strength woven geotextile fabric (PP / PET high-tenacity yarn) to AASHTO M288 — for separation, stabilization and reinforcement on roads.
- AASHTO M288
- Class 1 / 2 / 3
- PP / PET · Woven
Polyester Filament Nonwoven Geotextile
SIGMA polyester filament nonwoven geotextile is a continuous filament geotextile made from virgin PET (polyester) chips. The continuous filament is extruded by a spunbond process and needle-punched into a stable 3D fabric, so this spunbond polyester geotextile has high strength, good creep properties and excellent erosion, aging and heat resistance. With excellent drainage performance and the ability to accommodate irregular deformation, this polyester filament nonwoven geotextile is built to AASHTO M288 and graded by installation survivability (Class 1–3) for drainage, filtration, protection, separation and road reinforcement — shipped direct from our factory.
AASHTO M288Continuous filament · SpunbondPolyester (PET) · Nonwoven
Continuous filament geotextile to AASHTO M288
SIGMA polyester filament nonwoven geotextile is made from virgin PET (polyester) chips. The continuous filament is extruded directly from the PET chip by a spunbond process and then needle-punched together into a stable 3D fabric. As a continuous filament geotextile this spunbond polyester geotextile has high strength, good creep properties and excellent erosion, aging and heat resistance. It is built to the AASHTO M288 standard and graded by installation survivability — Class 1 (most severe), Class 2 (default) and Class 3.
Spunbond filament vs staple fiber — why it is stronger
In a spunbond process the polyester is extruded straight from the chip into long, continuous filaments that are laid down and needle-punched, rather than chopped into short staple fibers first. Because each filament runs unbroken through the web, a spunbond polyester geotextile develops higher strength and tenacity and greater dimensional stability than a staple-fiber fabric of the same weight, with low creep and high resistance to external damage. That makes the continuous filament construction the choice for high-load reinforcement and demanding drainage, while a lighter staple-fiber grade is often sufficient for routine filtration and protection — see our staple-fiber nonwoven geotextile range.
Drainage, filtration, separation and reinforcement
This polyester filament nonwoven geotextile delivers excellent drainage performance with high tenacity, and it can accommodate irregular deformation, so it stays intact over uneven ground. It is used across roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection and coastal engineering, and as the fabric for construction-site silt fences or geotube. Functionally it provides drainage, filtration, protection, road reinforcement and separation, while increasing soil stability and aiding erosion control.
Durability and service life
The PET filament is anti-aging, anti-acid and alkali resistant, and creep-, corrosion- and abrasion-resistant, with good water permeability and a wide range of adaptation, so the fabric holds its function over a long service life in soil, water and marine environments. Its resistance to external damage and low creep are what let it carry sustained reinforcement load and survive rough placement, while the high permeability keeps drainage and filtration working without the fabric clogging or blinding over time.
Installation and overlap
The fabric is unrolled over the prepared subgrade or slope and overlapped at the joints — commonly 300 mm on firm ground, increasing to 0.6–1 m or sewn seams on soft, wet soil — so it stays continuous as fill or aggregate is placed. Backfill is end-tipped and spread without trafficking the bare fabric, and exposed edges are covered promptly because prolonged UV exposure reduces strength even though the PET is UV-stabilised. For erosion control and bank protection the fabric is anchored at the crest and toe and weighted with the cover layer.
Choosing a class — quality and supply
AASHTO M288 sets filtration permittivity and AOS from the soil gradation and grades strength by survivability Class (1, 2 or 3) rather than by weight; Class 2 is the default, Class 1 for severe placement and Class 3 for mild conditions, and for a given weight a continuous-filament fabric typically exceeds the M288 minimums. As the manufacturer we produce the filament and the needle-punch line in-house, so each roll of polyester filament nonwoven geotextile is made to a consistent gsm and tested before it ships. Tell us the function and soil and we will size the filament geotextile and quote the same business day.
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Key features
- Polyester continuous filament nonwoven geotextile to AASHTO M288
- High strength and excellent tenacity from spunbond PET filament
- Excellent drainage performance and high permeability
- Anti-aging, anti-acid and alkali resistant
- Creep, corrosion and abrasion resistant
- Accommodates irregular deformation — safe, easy construction
- Low creep and high resistance to external damage
- Wide range of adaptation across road, hydraulic and coastal works
Ideal for
- Roads, airfields and railroads — separation and reinforcement
- Embankments, retaining structures and reinforced soil
- Reservoirs, canals, dams and bank protection
- Coastal engineering, silt fences and geotube fabric
- Filtration, drainage and protection over geomembrane liners
Specifications
Polyester Filament Nonwoven Geotextile (continuous filament) — AASHTO M288 minimum average roll values (MARV), elongation ≥50%.
| Property | Test Method | Unit | Class 1 | Class 2 (default) | Class 3 |
|---|---|---|---|---|---|
| Grab strength (min.) | ASTM D4632 | N | 900 | 700 | 500 |
| Sewn seam strength (min.) | ASTM D4632 | N | 810 | 630 | 450 |
| Trapezoid tear strength (min.) | ASTM D4533 | N | 350 | 250 | 180 |
| CBR puncture strength (min.) | ASTM D6241 | N | 1925 | 1375 | 990 |
- Class 2 is the default classification in the absence of site-specific information. Sewn seam strength must be ≥90% of grab strength.
- Filtration / hydraulic (by soil gradation, ASTM D4491 permittivity): soil <15% passing 0.075 mm → min. 0.5 sec⁻¹; soil 15–50% → min. 0.2 sec⁻¹; soil >50% → min. 0.1 sec⁻¹.
- Apparent Opening Size (AOS, max. avg., ASTM D4751): soil <15% passing 0.075 mm → 0.43 mm; 15–50% → 0.25 mm; >50% → 0.22 mm. UV stability (ASTM D4355): 50% retained after 500 hr.
- Continuous-filament (spunbond) nonwovens are elongation ≥50% and follow the same AASHTO M288 nonwoven column; for a given weight they typically exceed these minimums.
- Per-weight (gsm) strength values are manufacturer datasheet figures: On request. Roll width and length are order-specific and are not governed by AASHTO M288 — contact us for stock sizes.
Frequently asked questions
What is a polyester filament nonwoven geotextile?
It is a continuous filament geotextile made from virgin PET chips: the polyester filament is extruded by a spunbond process and needle-punched into a stable 3D fabric. This gives high strength, good creep properties and excellent erosion, aging and heat resistance, with excellent drainage performance.
How does continuous filament compare with staple-fiber nonwoven?
A continuous filament (spunbond) nonwoven is generally stronger and more dimensionally stable than a staple-fiber fabric of the same weight, so it suits high-load reinforcement and demanding drainage. For routine filtration and protection a staple-fiber nonwoven geotextile is often sufficient and lower cost.
What standard is it made to?
It is manufactured to AASHTO M288, the standard specification for geosynthetics. AASHTO M288 grades the fabric by installation survivability — Class 1 (most severe), Class 2 (default) and Class 3 — with minimum average roll values for grab, sewn seam, trapezoid tear and CBR puncture strength, plus permittivity and AOS set by the soil gradation.
What is polyester filament nonwoven geotextile used for?
It is used in roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection and coastal engineering, and as the fabric for silt fences and geotube. It provides drainage, filtration, protection, separation and road reinforcement while increasing soil stability and aiding erosion control.
How durable is it — is it resistant to chemicals and ageing?
The PET continuous filament is anti-aging, anti-acid and alkali resistant, and creep-, corrosion- and abrasion-resistant, with good water permeability and a wide range of adaptation. Its resistance to external damage and low creep give it a long service life under sustained reinforcement load and in soil, water and coastal environments.
What is the minimum order quantity and lead time?
As the manufacturer we run economic batches, so the minimum order quantity depends on the weight and width rather than a fixed roll count; standard grades carry a low MOQ while custom widths are made to order. Send us the class or gsm, roll width and total area and we will confirm the MOQ, stock availability and production lead time with the quote.
What roll widths and lengths are available?
Roll width and length are order-specific and are not governed by AASHTO M288. We hold common stock widths and can produce custom widths and lengths to suit the site and shipping container. Contact us with your required dimensions and we will confirm stock sizes and any made-to-order options.
How much does polyester filament nonwoven geotextile cost?
Price depends mainly on the weight (gsm) / survivability class, roll width and order volume. As a manufacturer we quote ex-works per square metre or per roll; send us the class or gsm, total area and destination port and we will return a price the same business day.
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Request a quote for the Polyester Filament Nonwoven Geotextile
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