Ardex DPM 1 C Damp Proof Membrane One Coat

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<ul> <li>Protects the final floorcovering from residual construction moisture and rising damp</li> <li>Can be applied where a structural damp proof membrane is not present or is ineffective</li> <li>Suitable for use on surfaces with the highest measurable levels of moisture content (up to 98% RH)</li> <li>Suitable for use on Anhydrite/Calcium Sulphate based screeds</li> <li>Adheres to saturated concrete even at lower temperatures</li> <li>Can receive ARDEX Smoothing and Levelling Compounds in as little as 6 hours</li> <li>Suitable for use on cement/sand screeds containing water based under floor heating systems</li> <li>Apply ARDITEX NA direct without priming</li> </ul>

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Ardex DPM 1 C Damp Proof Membrane One Coat Damp Proof Membrane and Residual Moisture Suppressant

  • Guarantees the early laying of all floorcoverings
  • Walkable in 6 hours
  • Accommodates Hygrometer readings up to 98% RH in one coat
  • Adheres well to wet concrete even at 10°C
  • Suitable for cement/sand screeds containing underfloor heating systems

Apply ARDEX DPM 1 C to protect the floorcovering installation from residual construction moisture and ground bearing moisture. Ideal for use where there is no functioning structural DPM (common in older properties).

ARDEX DPM 1 C is a one coat solvent free, low viscosity, two component epoxy resin. After hardening, ARDEX DPM 1 C produces a membrane which can accommodate hygrometer readings up to 98% with high inherent bond strength. ARDEX DPM 1 C has excellent resistance to water, grease, oil, aqueous salt solution and dilute mineral and organic acids.

Density at 20°C: 1.54

Working Time: 20 minutes at 20°C

Over Coating if required: 6-8 hours at 20°C

Walkability at 20°C: After 6 hours

Apply an even coat of the mixed ARDEX DPM 1 C with a suitable V shaped notched trowel over the appropriate area, see table below. Whilst the ARDEX DPM 1 C is still wet, the serration ridges should be flattened out with a long handled short pile paint roller, initially pre-wetted with the mixed ARDEX DPM 1 C.

The applied film thickness can be checked with wet film thickness gauge. It is essential that the applied ARDEX DPM 1 C is a continuous film and free from pinholes, cavities or thin patches, which can occur on porous screeds for example, in this case an additional application, may be necessary. 

Evenly spread the mixed unit over one of the following approximate areas, dependent on the surface texture and thickness required:


More Information

Brand Ardex
Colour Black
Coverage Refer attached technical datasheet
Type Damp Proofing

Technical Info

Delivery Costs:

Delivery fees are calculated based on the weight of your order and your delivery location. You can use the delivery fee calculator in your basket or on the checkout page to find the exact cost.

Delivery Area:

We currently only deliver to UK Mainland and the Highlands. We do not deliver to the Islands, Ireland, or Northern Ireland.

Next Working Day Delivery (Subject to Stock Availability):

Orders placed before 12:00 pm (noon) will be delivered the next working day, excluding weekends and holidays. This service starts from £6.50 (including VAT) and the final cost is based on the weight of your order and your delivery location. You can check the exact cost in your shopping cart or on the checkout page by entering your postcode.

Economy Service (2-3 Working Days):

This service is only available for orders over 50kg. There is no additional charge for this service.

Sample Orders:

All sample orders are shipped for free via Royal Mail Tracked 48 or 24 service. Delivery typically takes 1-3 working days.

Delivery Methods:

Non-sample orders under 50kg will be dispatched via DPD or APC Overnight. Non-sample orders over 50kg (quarter, half, and full pallets) will be dispatched via Palletways or Kandrmason.


Simply place your order online and choose the Click & Collect option at checkout.
We'll email you once your order is ready for pickup at your chosen store.
Collection hours: Monday - Friday: 8:30 am to 4:30 pm

For more information, please visit our Delivery Information page.

- Please inspect your order for any damages upon delivery and notify us immediately if you find any.

- We will replace any items that are damaged during transit.

- We accept returns within 30 days of delivery.

- Please note that customers are responsible for the cost of returning items.

- We will process returns and refunds promptly once the items are received at our warehouse.

Returning Trims
Schluter Trime
Returning trims - 35% restocking fees applied.
Returnign trim with replacement - 15% restocking fees applied
Customers are responsible to arrange returning the item.
If we arrange a return colleciton, a £35 return item collection feed will be applied.

Mapei-Profilpas Trims
A 20% restocking fee will be applied. (Item must be in re-sellable condition)
The customer is responsible for returning the item.

For more information, please visit our Return & Exchange page.


Product Questions