NBS Source
Newton 520 eco


Generally specified where it is anticipated that there may be a risk of severe water penetration.

Suitable substrates:

  • Concrete rafts or slabs;
  • Newton Fibran XPS 500-C closed cell extruded polystyrene insulation.


A cavity drain waterproofing membrane manufactured from recycled high-density polyethylene (HDPE).

The product is one of the main constituent parts of Newton System 500 – the BBA certified, ‘Type C’ cavity drain system – used for the waterproofing of earth-retained structures, including drainage channels sited below the membrane for increased drainage capacity. With its 20 mm deep stud profile, Newton 520 Eco is used within the Newton System 500 as a high drainage capacity floor membrane and is generally specified where it is anticipated that there may be a risk of severe water penetration.

Newton 520 eco is inert and non-polluting to drinking water, highly resistant to water, alkalis, saline solutions and organic acids, and not affected by minerals and hydro-carbons, and is resistant to bacteria, fungi and other small organisms.

Consult manufacturer's literature for relevant preparation and surface protection.

Features and benefits:

  • Speed of installation.
  • Made from 100% recycled HDPE.
  • Provides vapour control and, when used with humidity control systems and is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102: 2009.
  • Resistant to rot, chemically aggressive groundwater, acids and alkalines, saline solutions, efflorescing salts and hydrocarbon contamination.
  • Product waste is recycled when returned to Newton Waterproofing by Newton Registered Contractors - consult manufacturer for details.
  • Guaranteed against deterioration for 30 years, with a life expectancy of at least the design life of the building (DIN 9001:2000) and is supported by BBA Certification Number 94/3010.

General information






21 x 2070 x 10 000 mm


Newton 520 eco is supplied with a product warranty of 30 years and has a life expectancy of at least 100 years (DIN 9001:2000). Please note that this is not a guarantee. The waterproofing guarantee is provided by the specialist waterproofing contractor.

Uniclass 2015

Pr_25_57_51_74 Rubber studded sheetsPrimary


J40/290 High density polyethylene/ polypropylene studded cavity drain membrane

J40/297 Waterproofing/ Damp proofing membrane

J40/47 High density polyethylene/ polypropylene studded cavity drain membrane

Specification data - Rubber studded sheets Enhanced data


BS 8102:2009 The British Standard for Waterproofing, BBA certified.

Third-party certification

BBA certificate - 94/3010.

Weight (minimum)

37.62 / 18.35 kg (packaged weight).

Performance characteristics


Flow rate

10.00 L/s/m²

Fire performance

To BS EN 13501-1: Euroclass E.

Product Reference

Newton 520 Eco (M4)

2.07 x 20 m (w x l).

Newton 520 Eco (M13)

2.07 x 10 m (w x l).


1000 g/m².


40 and 20 m².


20 mm.


1.0 mm.

Stud depth

19.0 mm.

Vicat softening temperature


Service temperature

-40°C to +80°C.

Compressive strength – Temporary loading

240 kPa.

Compressive strength – Permanent loading

4 kPa.


0.461 W/mK.

Water vapour diffusion resistance – Sd value

>604 m.

Water vapour diffusion resistance – µ value

>1 208 000 µ.

Water vapour diffusion resistance

>3020 MNs/g.

Resistance to fire

Euroclass E.

Chemical resistance – Excellent


Oxidation resistance – Excellent


Environmental information



Recycled content


Digital objects

Platform Compatible Version Certified to




Revit 2016


Download now from NBS National BIM Library


Newton 520 eco

Newton 520 eco

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

Certificate number: 94/3010

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