Tanking Membrane 20m x 4m

Description

MM380 Tanking Membrane – 20m x 4m (Marshalls Red)

The MM380 Tanking Membrane provides a high‑performance barrier designed for Type C permeable block paving systems. Additionally, its advanced polymer blend delivers exceptional tear resistance, puncture strength, and chemical stability. Therefore, the membrane reliably retains attenuated water within the pavement structure and prevents leakage into the sub‑grade.

Despite its impressive strength, MM380 remains lightweight and easy to handle. Moreover, the 0.38mm thickness makes the membrane simpler to carry, position, and roll out compared with heavier alternatives. Consequently, installers benefit from faster installation and reduced labour effort on site.

The membrane is manufactured in Marshalls Red for clear identification during installation. Additionally, each roll is double‑folded to minimise pack size and improve handling. The generous 80m² roll coverage reduces time spent rolling out and jointing, supporting efficient large‑scale installations.

All essential accessories are available to complete the system. Marshalls Tanking Tape provides waterproof jointing between MM380 sheets. Flexible top‑hat units in 110mm and 160mm sizes create secure, neat pipe penetrations for drainage outfalls.

Technical Performance

• Base Material: Polymer blend
• Roll Size: 20m x 4m
• Thickness: 0.38mm
• Mass: 395 g/m²
• Tensile Strength: 24.2 / 20.7 N per 50mm
• Tear Resistance: 185 N
• Impact Resistance: >30mm diameter

These performance values demonstrate the membrane’s suitability for demanding permeable pavement applications.

Why Choose MM380 Tanking Membrane

• Superior tear and puncture resistance for long‑term reliability
• Excellent chemical resistance for challenging ground conditions
• Lightweight and easy to install due to reduced thickness
• Large roll size for faster coverage and fewer joints
• Compatible accessories for watertight, professional detailing

Tanking Membrane 20m x 4m or MM380 Tanking Membrane for Block Paving.

Demonstrating superior tear and puncture resistance as well as excellent chemical resistance, Marshalls MM380 Tanking Membrane has been designed specifically to tank "Type C" non-filtration permeable pavements.

The unique co-polymer blend provides confidence that attenuated water will be retained within the structure and not leak into the sub grade. Despite its inherent strength, at 0.38 microns MM380 is thinner than alternative membranes, making it lighter to carry and easier to roll out.

Manufactured in “Marshalls Red” for easy identification on site and double folded to minimise pack size, its 80m2 roll size minimises time spent rolling out and jointing the membrane. All necessary ancillary products are available including Marshalls Tanking Tape – for the waterproof jointing of Marshalls M380 Membranes and 110mm and 160mm flexible top hat units – to create neat, secure pipe outfalls.

DESCRIPTION Base Raw Material Polymer Blend

PHYSICAL PROPERTIES Tolerances on Work

Dimensions (mm)

Length 20m -0%/ +10% EN 1848-2

Width 4m +/- 2.5% EN 1848-2

Thickness 0.38 mm +/- 10% EN 1849-2

Length (mm) 20000 Width (mm) 4000

Thickness (mm) 380

Microns Mass 395 g/m2 +/- 12% EN 1849-2

Material Safety Data Sheets Material Safety Data Sheets (COSHH) are available on request

Tensile Strength 24.2 20.7 N/50mm MDV EN 12311-1

Resistance To Tearing 185 185 N MDV EN 12310-1

Resistance To Impact 30 mm/dia >MLV EN 12691