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Secutex® Green Biodegradable* geotextile

Naue Secutex® Green is a biodegradable* nonwoven geotextile for separation, filtration and protection in temporary works and on sensitive sites.

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  • Close-up of a biodegradable* geotextile nonwoven Secutex® Green.
  • Close-up of a biodegradable* geotextile nonwoven Secutex® Green.
  • Construction site for a temporary courtyard, where the biodegradable* Secutex® Green nonwoven is installed for separation of soil and gravel.
  • Construction site for a temporary path, where the biodegradable* Secutex® Green nonwoven layer is installed for separation and protection.
  • Construction site that is part of a renaturation project and uses biodegradable* Secutex® Green geotextile layers under cover material.
  • Secutex® Green is a biodegradable*, needle-punched nonwoven geotextile for separation, filtration and protection.
  • Needle-punched staple fibres from renewable raw materials separate soil layers and retain fines, then biodegrade* fully once vegetation and roots take over the filter function.
  • Geotextile robustness classes GRK 2 to GRK 5; widths 2 m, 4 m and 6 m.
  • Typically about 3 years service life, depending on soil, water and climate (biological activity at the site).
  • TÜV Austria: OK compost (Home & Industrial), OK biodegradable (Soil, Water, Marine); Seedling per EN 13432.

Secutex® Green is a biodegradable*, mechanically bonded nonwoven geotextile for separation, filtration and protection. It is made from uniform staple fibres of renewable raw materials, needle-punched into a single-layer nonwoven. Installed between soil layers or beneath aggregate, it retains fine particles and keeps materials separated while remaining water-permeable. Once vegetation and roots take over the filter function, the geotextile biodegrades* fully.

Secutex® Green is designed for temporary works and sensitive sites. It holds TÜV Austria certificates for OK compost (Home and Industrial) and OK biodegradable (Soil, Water and Marine), plus a Seedling certificate per EN 13432. After use, the nonwoven can remain on site and compost during renaturation, removing the need to separate natural materials from the geotextile and dispose of them.

Secutex® Green is available in geotextile robustness classes GRK 2 to GRK 5 (Secutex® Green 30G1 to 120G1) per the FGSV M Geok E leaflet, in widths of 2, 4 and 6 m. Mass per unit area ranges from 300 g/m² (30G1 GRK 2; O90 70 µm; CBR ≥ 1,000 N) to 1,200 g/m² (120G1 GRK 5; O90 45 µm; CBR ≥ 5,000 N). The fibres are UV-resistant, allowing uncovered installation. Expected service life is about three years, governed by the biological activity at the site.

Secutex® Green geotextile functions:

  • Separation

    Separation

    Secutex® Green keeps dissimilar soil layers or aggregate and subsoil apart, preventing intermixing and loss of bearing capacity in temporary roads and working areas.

  • Filtration

    Filtration

    Secutex® Green retains fine soil particles while remaining water-permeable, until vegetation and roots take over the filter function at end of service life.

  • Protection

    Protection

    Acts as a protective cushion layer for sensitive substrates and surfaces in landscaping and temporary works.

Secutex® Green geotextile advantages: certified biodegradability*, no disposal

Secutex® Green combines proven separation and filtration performance with certified biodegradability*, so it can be left in place at the end of its service life.

  • Biodegradable

    Certified biodegradability*

    Complete biodegradation* under the certified conditions per TÜV Austria OK compost and OK biodegradable, and Seedling.

  • Safety

    UV resistant

    Can be installed uncovered, for example in gardening and landscaping.

  • Costs

    No removal, no disposal

    Can remain on site and compost after renaturation. No separation of natural materials from the nonwoven and neither landfill nor incineration is needed.

  • Certificate

    Defined robustness

    Available in GRK 2 to GRK 5 (FGSV M Geok E) to match separation, filtration and protection requirements.

Application areas

Typical applications:

  • Separation and filter layer beneath temporary access roads, site roads and haul roads
  • Hardstanding and car-park areas on sensitive or protected land
  • Footpaths in landscape protection areas and nature reserves

In temporary road and site-road construction, Secutex® Green separates the base course from the subsoil so that aggregate and soil do not intermix, preserving bearing capacity.

Advantages:

  • GRK 2 to GRK 5 grades cover light landscaping to heavy construction traffic
  • Prevents intermixing of base course and subsoil to preserve bearing capacity
  • Fully biodegradable*: can remain in place when the temporary road is removed
Construction site for a temporary path, where the biodegradable Secutex® Green nonwoven layer is installed for separation and protection.

To the application:

Civil engineering

Typical applications:

  • Soil retention behind fascines in bank protection and natural watercourse development
  • Filter layer between different grain sizes until roots stabilise the soil
  • Coastal and scour protection at sensitive sites (also as Secutex® Green Soft Rock sand container)
  • Near-natural landscaping along rivers and lakes

In renaturation and bank protection, Secutex® Green retains soil until vegetation establishes and then decomposes, so no geotextile has to be recovered from a near-natural watercourse. During the renaturation and relocation of Secutex® Green can be used in the works.

Advantages:

  • Retains soil until vegetation takes over the filter function
  • Biodegrades* in soil and freshwater (TÜV Austria OK biodegradable SOIL / WATER)
Construction site that is part of a renaturation project and uses biodegradable geotextile layers under cover material.

To the application:

Hydraulic engineering

  • Gardening and landscaping

    • Separation and filter layer under paths
    • Protection layer for sensitive substrates and surfaces
    • Erosion protection in landscaping

  • Interim construction

    • Temporarily used spaces (e.g. interim yard)
    • Separation of surfacing materials from the existing subsoil
    • Protection layer for sensitive substrates and surfaces

  • Coastal engineering

    • Soil retention behind fascines
    • Filter between grain sizes
    • Use as sand containers for scour and coastal protection

Technical properties

PropertyUnit30G1 GRK 240G1 GRK 360G1 GRK 490G1 GRK 5120G1 GRK 5
Product build-up
Product type—Biodegradable*, single-layer, needlepunched staple fibre nonwovenBiodegradable*, single-layer, needlepunched staple fibre nonwovenBiodegradable*, single-layer, needlepunched staple fibre nonwovenBiodegradable*, single-layer, needlepunched staple fibre nonwovenBiodegradable*, single-layer, needlepunched staple fibre nonwoven
Function—Protection, separation, filtrationProtection, separation, filtrationProtection, separation, filtrationProtection, separation, filtrationProtection, separation, filtration
Raw material properties—Renewable and biodegradable*Renewable and biodegradable*Renewable and biodegradable*Renewable and biodegradable*Renewable and biodegradable*
Technical data
Mass per unit area, nominal (minimum) – DIN EN ISO 9864g/m²300 (≥ 270)400 (≥ 360)600 (≥ 540)900 (≥ 810)1,200 (≥ 1,080)
Thickness, nominal (minimum) – DIN EN ISO 9863-1mm3.0 (≥ 2.7)3.3 (≥ 3.0)4.0 (≥ 3.6)5.5 (≥ 5.0)7.0 (≥ 6.3)
Puncture resistance – DIN EN ISO 12236N≥ 1,000≥ 1,500≥ 2,500≥ 3,500≥ 5,000
Characteristic opening size O₉₀ – DIN EN ISO 12956µm7060504745
Detector tested—YesYesYesYesYes
German geotextile robustness class acc. to FGSV M Geok E
Robustness class—Class 2, fulfilledClass 3, fulfilledClass 4, fulfilledClass 5, fulfilledClass 5, fulfilled
Class requirement – puncture resistancekN≥ 1.0≥ 1.5≥ 2.5≥ 3.5≥ 3.5
Class requirement – mass per unit areag/m²≥ 100≥ 150≥ 250≥ 300≥ 300
Certified biodegradability
Certificates to be submitted (or comparable), proving complete biodegradability under the boundary conditions of the currently valid standards—OK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER, OK biodegradable MARINE – all TÜV AustriaOK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER, OK biodegradable MARINE – all TÜV AustriaOK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER, OK biodegradable MARINE – all TÜV AustriaOK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER, OK biodegradable MARINE – all TÜV AustriaOK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER, OK biodegradable MARINE – all TÜV Austria
Seedling certificate—Following EN 13432Following EN 13432Following EN 13432Following EN 13432Following EN 13432
Cross-section of soil and vegetation showing Naue Secutex® Green as a white biodegradable nonwoven geotextile layer that provides temporary separation and filtration while plant roots progressively develop and take over soil-retention.
Cross-section of soil and vegetation showing Naue Secutex® Green as a white biodegradable nonwoven geotextile layer that provides temporary separation and filtration while plant roots progressively develop and take over soil-retention.
Exemplary illustration: Naue Secutex® Green is shown in a soil cross-section during the transition from early establishment to mature vegetation. The biodegradable* nonwoven geotextile provides temporary separation and filtration in the initial phase, while the root system develops and progressively assumes the long-term soil-retention function.
Exemplary illustration: Naue Secutex® Green is shown in a soil cross-section during the transition from early establishment to mature vegetation. The biodegradable* nonwoven geotextile provides temporary separation and filtration in the initial phase, while the root system develops and progressively assumes the long-term soil-retention function.

How certified biodegradation* and robustness classes work

Secutex® Green is made entirely from renewable, organic raw materials and is processed by soil organisms, microorganisms and fungi at the end of its service life. Biodegradability* is certified by TÜV Austria under five separate schemes:

  • OK compost INDUSTRIAL
  • OK compost HOME
  • OK biodegradable SOIL
  • OK biodegradable WATER
  • OK biodegradable MARINE

together with a Seedling certificate confirming conformity with EN 13432.

Industrially manufactured fibres and a constant needling process give the nonwoven reproducible quality, allowing assignment to a German geotextile robustness class (GRK) per FGSV leaflet M Geok E. Secutex® Green covers GRK 2 to GRK 5, with each higher class denoting a higher minimum mass per unit area and static puncture resistance, matched to the mechanical demand of the application.

Service life depends on the biological activity of the surrounding soil, water and climate; as a rule of thumb, about three years. Secutex® Green is thus a deliberately temporary geotextile: it separates and filters during the critical construction or establishment phase, after which vegetation and roots take over soil retention.

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Frequently asked questions

Secutex® Green is a biodegradable, single-layer needle-punched nonwoven geotextile made from renewable raw materials. It provides separation, filtration and protection in temporary works, landscaping and watercourse renaturation, and biodegrades* after use.

Yes. Biodegradability* is certified by TÜV Austria under OK compost INDUSTRIAL, OK compost HOME, OK biodegradable SOIL, OK biodegradable WATER and OK biodegradable MARINE, together with a Seedling certificate confirming conformity with EN 13432.

Service life depends on the biological activity of the site (soil, water and climate). As a rule of thumb, about three years can be assumed. It is intended as a temporary geotextile that performs during the construction or establishment phase.

GRK (Geotextile Robustness Class, FGSV M Geok E) defines a minimum mass per unit area and a minimum static puncture resistance. Secutex® Green is available from GRK 2 (30G1, 300 g/m², CBR ≥ 1,000 N) to GRK 5 (120G1, 1,200 g/m², CBR ≥ 5,000 N).

No. It can remain on site and compost during renaturation, avoiding the separation of natural materials from the geotextile and their disposal in landfill or incineration.

Yes. The fibres are UV-resistant, so the nonwoven can be used in uncovered applications such as gardening and landscaping.

Standard Secutex® and Secutex® H are durable polypropylene nonwovens for permanent separation, filtration and protection (Secutex® H for hydraulic engineering). Secutex® Green is a biodegradable* nonwoven for temporary applications and sensitive sites.

Yes. Secutex® Green is certified biodegradable* by TÜV Austria. Both any fibres that may detach and the geotextile itself biodegrade* without leaving any residue.

Yes. A biodegradable* geotextile sand container version, Secutex® Green Soft Rock, is available for bank, scour and coastal protection at ecologically sensitive locations.

Secutex® Green is available in geotextile robustness classes GRK 2 to GRK 5 (Secutex® Green 30G1, 40G1, 60G1, 90G1 and 120G1) and in widths of 2 m, 4 m and 6 m.

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