NBS Source
Newton 603 (M19/ M23)


  • As a damp proof flooring membrane.
  • As the membrane of choice for performance sports floors.
  • As the damp proof floor membrane for use with Newton System 800 damp proofing wall membranes.
  • Can be used as the flooring membrane within a Newton System 500 waterproofing specification.

Use with John Newton Waterproofing Tapes.


A high quality flooring membrane suitable for use above new and existing floors. The 3 mm studs allow for pressure equalizing of dampness within the floor below, allowing for dissipation at room perimeter and subsequent drying of the floor.

The studs also give slight compression to footfall making the floor very responsive and comfortable, and therefore suitable for use as the floor membrane for performance sports floors.

Newton 603 uncouples the floor finish from the substrate. The membrane also bridges small cracks allowing for quick floor installation above uneven substrates.

The membrane is guaranteed against deterioration for 30 years, and has a life expectancy of at least 50 years.

Newton 603 can be finished over with screed, 18 mm or 22 mm tongue and groove chipboard or particle board. Laminate and timber flooring should be installed over a layer of 18 mm or 22 mm tongue and groove chipboard.

Features and benefits:

  • Does not transfer substrate movement to the floor finish above.
  • High compressive loading stability.
  • Inert and highly resistant to water, alkalis, hydrocarbons, saline solutions and organic acids.
  • Not affected by minerals, and resistant to bacteria, fungi and other small organisms.

General information





White/ translucent.


M19: 1.0 x 10.0m and M23: 2.0 x 20.0m (W x L)

Uniclass 2015

Pr_25_57_51_74 Rubber studded sheetsPrimary


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

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

Product range

Sheet Flooring Membranes

Specification data - Rubber studded sheets Enhanced data

Stud height

3.0 mm.

Weight (minimum)

23.0 kg.

Performance characteristics


Fire performance

To BS EN 13501-1: Euroclass E.

Product Reference

Newton 603 (M19)

1 x 10 m.

Newton 603 (M23)

2 x 20 m.


500 g/m².


M19: 10 m² and M23: 40 m².

Vicat softening temperature


Service temperature

-40°C to +80°C.


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.

Chemical resistance – Excellent


Accessories/ Other requirements:

Not required.

Newton Overtape (A8).

For membrane jointing.

Newton Waterseal Rope (A6).

For sealing around protrusions through the membrane.

Thickness at 100kPa

2.64 mm.

Stud depth

2.5 mm.



Environmental information



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