Silt Netting
Silt Net
Silt Net is a 100% biodegradable rolled product, suspended in lagoons or rolled out in ditches to improve settlement, reduce erosion and polish water.

Silt Net is supplied in two forms:
- Untreated Silt Net – a natural filter medium that slows flows and traps suspended solids.
- Treated Silt Net – pre-impregnated with Clearflow Gel Flocculant™ to bind fine particles, enhance settlement and improve water clarity.
It is commonly used for:
- Suspended in settlement lagoons and ponds; as a curtain to break laminar flow, extend pathways and boost treatment performance.
- Rolled out and staked in ditches; to reduce erosion and capture suspended sub-soils.
- Creating longer flow paths within treatment ponds for longer retention.
Key Benefits
Frog Environmental’s Silt Net:
Straightforward installation
Supplied in rolls for quick deployment in lagoons, ponds and ditches
Retrofit enhancement
Can be easily added to existing settlement ponds and lagoons to improve treatment performance
100% biodegradable
A natural product made from sustainably sourced natural fibres
Simple disposal
Fully biodegradable – can be safely discarded or seeded to create habitat as it breaks down
Treated or untreated options
Available untreated, or pre-treated with Clearflow Gel Flocculant™ to capture fine clay and silt particles
Rapid response & low carbon delivery
Quick turnaround with carbon neutral delivery as standard
Technical specification of our Silt Net (SN700):
Dimensions | 20 × 2 metres rolled product, 900 GSM |
Material | 100% natural, biodegradable coir fibres with jute netting, sewn using fully biodegradable thread.
Our treated version includes Gel Flocculant particles. |
Durability | Provides erosion control and treatment support for over 5 years before naturally breaking down, allowing vegetation to establish. |
Strength and structure | Coir matting base with jute overlay for added stability and reinforcement |
Environmental credentials | Produced from sustainably sourced coir grown on organically managed plantations |
Fixing and installation |
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