Newton CDM 508 is a 8mm Cavity Drain Membrane for Basements. Newton CDM 508 is a high quality cavity drain waterproofing membrane, supplied in a number of sizes and in 500g/m2 and 700g/m2 variants for use within the Newton CDM System, an internally applied waterproofing system that also includes drainage and pumping systems.
CDM 508 is suitable for waterproofing earth retained walls and vaulted soffits and floors. It is guaranteed against deterioration for 30 years, with a life expectancy of the design life of the building (DIN 9001:2000), and supported by BBA Agrément Certificate 22/6357.
CDM 508 is inert and non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof, and resistant to bacteria, fungi and small organisms.
Key Benefits:
- Does not require extensive and damaging preparation to the wall surface
- Speed of installation
- Capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2022
Newton CDM 508 Membrane is available in the following variants:
- CDM 508 700g/m² (Code M1-7-48): 2.4m x 20m – 48m²
- CDM 508 700g/m² (Code M1-7-40): 2m x 20m – 40m²
- CDM 508 500g/m² (Code M1-5-48): 2.4m x 20m – 48m²
- CDM 508 500g/m² (Code M1-5-40): 2m x 20m – 40m²
Typical Applications
- Walls
- Floors (700g/m2 variants only)
- Vaults
- Tunnels
SUITABLE SUBSTRATE – WALLS
- Concrete
- Brick
- Concrete block
- ICF – With special longer fixing plugs
SUITABLE SUBSTRATE – FLOOR
- Concrete raft or slab
- Newton Fibran XPS 500-C closed cell extruded polystyrene insulation
SUITABLE SUBSTRATE – SOFFITS
- Concrete – To fall
- Brick – Arched or vaulted
Please see our our Delivery policy page for full details of our delivery terms and conditions, including information on exclusions, geographical restrictions, third parties, and failed deliveries.
1. Delivery Timescales
We will endeavour to deliver all orders within 1-3 working days (subject to geographical restrictions). Please note, where delivery lead-times for individual orders may be subject to change, we will keep you informed directly by phone or email within 24 hours of your order being placed.
Deliveries will not be made on UK bank holidays, and in such cases will fall on the next working day.
Standard delivery hours are between 8am and 6pm, Monday to Friday. If you are not available to accept the delivery when it is attempted, then a failed delivery charge will be applied (see the Delivery page for full details)
2. Delivery Fee Structure:
All orders, excluding those containing products covered in section 3 below, will be subject to the below delivery fee structure:
- Total order weight is between 0kg and 10kg = £7.99 standard delivery fee
- Total order weight is between 10kg and 20kg = £12.99 standard delivery fee
- Total order weight is between 20kg and 75kg = £20 standard delivery fee
- Total order weight is 75kg and above = £60 large order delivery fee
- Total order value exceeds £500 (regardless of weight) = Free delivery
3. Exclusions
The delivery fees detailed above apply to all orders, excluding:
- Orders containing insulation will be charged at £60 per pallet (10 units per pallet). Please get in touch with us directly for pricing and ordering.
- Orders containing protection boards: A large order delivery fee of £60 will be applied.
- Orders containing membranes of two metres wide and above: The delivery fee will be calculated as a price per unit*.
| Code |
Description |
Weight (kg) |
Delivery Fee Per Unit |
| Multiple |
All membrane products with a width of two metres and above |
Varied |
£20 |
| M3 |
Newton CDM 508 Mesh |
29.26 |
£25 |
| M2 |
Newton CDM 508 eco Floor |
41.3 |
£30 |
| M4 |
Newton CDM 520 eco Floor |
37.62 |
£40 |
*Please note that, for orders containing membranes of two metres wide and above:
- Once the total order weight exceeds 75kg then the £60 large order fee will automatically be applied
- Once the total order value exceeds £500 then the free delivery policy will automatically be applied
4. Geographical Areas
The above delivery fees apply to all postcodes in mainland England, Wales and Scotland.
For deliveries to Ireland, Northern Ireland, the Channel Islands, the Scottish Isles, and any international orders please get in touch with the BaseTec team directly by email or phone for a custom delivery price. Standard delivery timescales do not apply to these areas and will be advised on request.
Additional charges, including customs fees, duties, or taxes may apply for international orders.
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