Newton Newtonite 803 Non-Mesh

Newtonite 803 Damp-Proof Wall Membrane – 3mm Above Ground Protection

The Newtonite 803 Damp-Proof Wall Membrane is a BBA-certified, high-quality solution for above-ground damp proofing. Designed as an alternative to meshed membranes such as Newtonite 803 Mesh or NewLath 805, this membrane is ideal when a meshed surface for direct plastering or rendering is not required. It is commonly used where the wall finish involves timber battens, dry-lining frames, or block walls.

With a shallow 3mm stud profile, Newtonite 803 effectively isolates the wall finish from damp walls, providing long-term protection while maintaining space efficiency. It is lightweight, easy to install, and highly resistant to water, salts, organic acids, and bacterial growth.

Key Benefits:

✅ Effective damp isolation – Prevents moisture transfer to wall finishes
✅ Minimal wall preparation required – No need for extensive or damaging surface treatments
✅ Fast & easy installation – Lightweight, clean, and simple to cut with a knife or shears
✅ Highly resistant – Protects against efflorescent salts, hydrocarbons, and rot
✅ Space-saving – 3mm stud profile is ideal for areas where depth is limited
✅ Durable & long-lasting – 30-year guarantee with a 50-year life expectancy

Typical Applications:

✔ Damp-proof membrane for above-ground walls where a meshed surface is not required
✔ Used with timber battens, dry-lining frames, or block walls
✔ Ideal for residential and commercial damp-proofing projects

Product Specifications:

• Code: M20
• Size: 2.0m x 20m roll (40m² coverage)
• Thickness: 0.5mm with 3mm raised studs
• Color: White/Translucent

Technical Performance:

• Compressive Strength (Temporary Loading): >320 kPa
• Compressive Strength (Permanent Loading): 100 kPa
• Thermal Conductivity: 0.461 W/mK
• Water Vapour Diffusion Resistance (Sd Value): >604m
• Fire Resistance: Euroclass E
• Chemical & Oxidation Resistance: 100% Excellent

Associated Products for Installation:

• Newton 800 Mesh Plugs - membrane fixings to walls above ground
• Newton Multiplugs -  membrane fixings to walls below ground
• Newton 800 Cob Plugs - membrane fixings to walls above ground - poorer quality substrates such as cob walls
• Newton Waterseal Rope - plug sealing
• Newton Waterseal Tape - membrane joint sealing
• Newton 800 Mastic - an alternative to sealing with rope and tape
• Newton Overtape - floor and wall joint sealing

💪 Protect your walls with Newtonite 803 Damp-Proof Membrane – Order now for long-term damp protection!

• Download Data Sheet

• Download Declaration Of Performance
  

Always follow an up to date data sheet when installing or applying this or associated products.

For help and advice on product purchase or application please call our customer services team on 01268 472358.

We have taken great care to display the colours and images of our products as accurately as possible based on the manufacturers product information in the store. However, we cannot guarantee that the colour representation on your monitor will be precise and recommend that customers call for further technical product information if they have any doubts about a product prior to purchase. Please refer to our "Terms of Service" for further information.