Heavy-Duty DPM Polythene Sheeting – 500 Micron (4m x 12.5m)
This heavy-duty DPM polythene sheeting offers a durable, waterproof barrier ideal for a wide range of construction, civil engineering, and stormwater attenuation applications. Manufactured from 100% recycled polyethylene, it combines strength, flexibility, and long-term performance, making it suitable for both residential and commercial use.
At 500 microns thick (0.5mm) and supplied in a 4m x 12.5m roll, the sheeting provides excellent tear resistance while remaining lightweight and easy to handle on-site. It’s especially effective in attenuation systems, where it is used as a containment liner to wrap modular crate systems. When sealed correctly with butyl tape, it forms a watertight tank that helps manage stormwater efficiently and in line with SuDS regulations.
Beyond attenuation, this versatile sheeting can also be used for damp-proofing floors, general waterproofing, and ground protection across various project types. Its ease of installation, combined with a sustainable, recycled composition, makes it a smart and eco-conscious choice for professionals looking to reduce environmental impact without compromising on quality.
Whether you’re lining an attenuation system, damp-proofing a foundation, or protecting groundworks, this DPM polythene sheet delivers dependable, long-lasting performance you can rely on.
Perfect for Stormwater Attenuation
This sheeting is commonly used in attenuation tank systems, acting as a containment liner to form a sealed water-tight tank. Simply wrap around your modular crate system, overlap the sheets, and seal with butyl tape for complete protection.
✔ Creates a sealed stormwater tank
✔ Prevents leakage and water ingress
✔ Supports SuDS-compliant installations
Key Features
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Size: 4m x 12.5m (50m² coverage)
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Thickness: 500 micron (0.5mm)
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Material: 100% recycled polyethylene
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Durable & tear-resistant: Withstands heavy loads and harsh conditions
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Waterproof & flexible: Provides a strong, effective barrier
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Lightweight & easy to install: Simple to cut, position, and seal
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Eco-friendly: Made from fully recycled materials
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Compatible with butyl tape for watertight sealing








