Newton 803 Newtonite 40m²

3mm meshed damp proofing membrane from Newton specifically designed for application after the insertion of a new damp proof course.

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Availability: >In stock


RRP £395.00 Ex VAT
£270.00 Ex VAT £324.00 Inc VAT

Newton 803 Newtonite Wall Membrane

Newton 803 Newtonite is specifically designed for application after the insertion of a new damp proof course. Newton 803 Newtonite provides a firm key and impermeable barrier on any damp or deteriorating surface. The membrane can be installed straight after the insertion of the new damp proof course and can be rendered or dot and dabbed immediately after completion of the membrane installation. Thus cutting down the time of the remedial work.

Once the new damp proof course has been injected simply apply Newton 803 Newtonite to the walls affected then either dot and dab or render directly to the Newton 803 Newtonite. The Newton 803 Newtonite presents a physical barrier between the old surface finish and the new internal finish thus preventing any future discolouration and salt deposits on the surface plaster and decoration.


To fix 1 x 40m² roll of Newton 803 Newtonite you will require:

2 x Bag of Newton 800 Mesh Plugs (250)
1 x Bag of Newton 800 Mesh Plugs (160)
12 x Tubes of Newton 800 Mastic
1 x 7mm Masonry Drill bit

Permagard - Providing Solutions. Inspiring Confidence.

Permagard are proud to stock a wide range of Newton membranes and waterproofing products. If you have any questions about Newton products, or if we can help in any other way, please contact our technical team on 0117 982 3282.


  • Can be used on virtually any surface
  • Provides a good key for new finishes
  • Impenetrable barrier for damp, salts etc
  • Provides long lasting protection, and is effective for the remaining life of the building
  • Increases the insulation of the room
  • Bridges cracks in the substrate
  • Can be decorated as soon as installation is completed
  • Speeds up remedial and redecoration work
Model: JN803M40
SKU JN803M40
Manufacturer: Newton Waterproofing
Packaging: individually
Size: 2m x 20m x 3mm
Coverage: 40m²
BBA Certificate: BBA certificateCertification No: 94/3010
Approved by the British Board of Agreement
Country of Manufacture: United Kingdom

Need more information?

Speak to our technical experts.
0117 982 3282

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