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MM380 Tanking Membrane

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.

  • Impermeable polymer-blend membrane
  • Superior strength
  • Thinner and lighter than alternative membranes
  • 80m² roll size reduces jointing time
  • Ancillary products available

Price Range

  • £
  • £
  • £

Carbon Footprint

Available on Request

Ethical Risk Index

This Radar diagram illustrates the level of ethical risk associated with a specific stone. Ethical risk is plotted against the 10 ten measures of the ERI, with each value drawn from reports produced by independent ethical auditors, engaged by Marshalls to provide non-biased and honest reporting into levels of risk in that supply chain.

Each of the 10 measure is designed to recognise different and discrete sources of ethical risk. This produces a bespoke, fit for purpose framework designed specifically for the requirements of the stone industry. The radar diagram itself also compares the Marshalls supply chain to the wider industry in that stone, giving users a working comparison of Marshalls supply chain to the industry average, in the opinion of the auditor.

  • Modern Slavery Act Awareness
  • Supply Chain Visibility
  • Income and Employment Security
  • Health & Safety
  • Employment Freely Chosen
  • Empowerment
  • Environmental
  • Governance
  • Corruption and Bribery
Ethical Risk Graph Image
  • MM380 Tanking Membrane
  • Cluster Score
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mm380 tanking membrane

Certification Logos and Accreditations

  • Accreditation 2019 superbrands logo Logo
  • Accreditation BSI Assurance Mark ISO 45001 Black Logo
  • Accreditation BSI Assurance Mark ISO 14001 KEYB Logo
  • Accreditation BSI Assurance Mark ISO 9001 KEYB Logo
  • Accreditation GlobalCompact Logo
  • Accreditation eti logo Logo
  • Accreditation Made in Britain Logo
  • Accreditation BES 6001 Logo
  • Accreditation Living wage Logo
  • Accreditation Fair Tax logo Logo
  • Accreditation Business in the community logo Logo
Product Name ID
MM380 Tanking Membrane (roll) PV9701000
160mm Top Hat (including clip) PV9701100
110mm Top Hat (including clip) PV9701200
Jointing Tape (roll) PV9701300