Long vs. Short Filament Non-Woven Geotextiles: Key Application Differences

Non-woven geotextiles are essential in construction, agriculture, and environmental projects, but  long filament and short filament types serve distinct purposes—their fiber structures shape their performance and ideal uses. Here’s a straightforward breakdown:

1. Long Filament Non-Woven Geotextiles: Built for Heavy-Duty, Long-Term Projects  Made from continuous polymer fibers (such as polyester or polypropylene), these geotextiles offer high tensile strength, strong UV resistance, and long-lasting durability. They excel in scenarios that demand withstanding heavy loads or enduring harsh conditions over years.  

• Core Applications:  

Highways & Railways: Installed between subgrade soil and asphalt/concrete layers to reinforce weak soil, prevent uneven settlement, and support heavy traffic.  

Landfills & Dams: Used as a protective layer under liners (e.g., HDPE geomembranes) to resist punctures from sharp debris and maintain stability against landfill leachate or long-term water pressure.  

2. Short Filament Non-Woven Geotextiles: Cost-Effective for Light-to-Medium Needs   Produced from short-cut fibers (typically 3–10mm long), these geotextiles are softer, more permeable, and more budget-friendly than long filament alternatives. They work best for temporary projects or scenarios where filtration and basic separation are the main priorities.  

• Core Applications:  

Agriculture: Laid in farmland or greenhouses to filter irrigation water, prevent drainage pipe clogs, and reduce soil erosion during rainy seasons.  

Landscaping & Small Ponds: Used as a separation layer in garden beds (between gravel and topsoil) or under pond liners to stop sediment from blocking the liner.  

Temporary Construction Sites: Cover exposed soil to suppress dust, prevent rainwater runoff, and protect the soil structure for post-project restoration.  

3.How to Choose

Opt for long filament non-woven geotextiles if your project is permanent (e.g., highways, dams) and requires high strength or long-term durability. Choose short filament non-woven geotextiles for temporary work (e.g., construction site covers), agricultural use, or when you need a cost-effective solution focused on filtration.