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Ardex Arditex NA Ultra Rapid Self levelling Compound 24.8kg
Ardex Arditex NA Ultra Rapid Self levelling Compound 24.8kg

Ardex Arditex NA Ultra Rapid Self levelling Compound 24.8kg

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Description

ARDITEX NA® Levelling & Smoothing Compound 

ARDITEX NA® is ARDEX’s original latex-based levelling and smoothing compound, trusted by contractors for decades due to its unrivalled versatility, reliability and site tolerance.

Designed to significantly reduce preparation time and cost, ARDITEX NA® eliminates the need for priming in most situations and can be applied directly to a wide range of challenging substrates — including damp concrete and old adhesive residues.

Key benefits

  • No priming required on most substrates
  • Unaffected by moisture – suitable for damp concrete
  • Rapid installation of tiles and floorcoverings
  • Excellent adhesion to difficult surfaces
  • Feather edge to 12mm in one application
  • Up to 30mm build-up with ARDEX Coarse Aggregate
  • Low odour – suitable for occupied buildings
  • Compatible with underfloor heating systems

Typical applications

ARDITEX NA® is designed to level and smooth uneven internal subfloors prior to the installation of ceramic tiles, vinyl, carpet, LVT and other common floor finishes.

It is also suitable for encapsulating underfloor heating cables or mats before fixing ceramic tiles.

Suitable substrates

  • Concrete and cement/sand screeds
  • Prepared terrazzo and quarry tiles
  • Porcelain and ceramic tiles
  • Old adhesive residues, including bitumen
  • Flooring-grade plywood and asphalt
  • ARDEx Damp Proof Membranes
  • Internal steel floors

Note: Not suitable for use over rubber, linoleum, cork or moisture-sensitive floorcoverings.

Mixing

Each unit consists of a 20kg bag of ARDITEX NA® powder and a 4.95kg bottle of ARDITEX NA® latex.

  • Shake and pour the latex into a clean mixing container
  • Add powder gradually while mixing continuously
  • Use an electric drill with ARDEX mixing paddle for best results
  • For smaller mixes, use a 3:1 powder-to-latex ratio by volume

Application

Pour the mixed compound onto the prepared floor and spread using a trowel or ARDEX Pin Leveller to the required thickness in one operation.

Apply at floor temperatures above 5°C. The use of a spiked roller while the material is still wet will improve surface finish and performance.

Thickness & coverage

The standard mix can be applied from a feather edge up to 12mm. For thicknesses above 8mm, the incorporation of ARDEX Coarse Aggregate is recommended and allows build-ups up to 30mm.

Thickness Approx. Coverage
2mm 7m²
3mm 5m²
5mm 3m²
8mm (with aggregate) 3m²
10mm (with aggregate) 2.3m²

Drying & curing times

  • Working time: approx. 20 minutes
  • Walkable after: approx. 2 hours
  • Ceramic tiles: from 3 hours at 3mm
  • Floorcoverings: from 4 hours
  • Up to 10mm thickness: floorcoverings after 24 hours

Technical data

Compressive strength (28 days) ≈ 16 N/mm²
Flexural strength (28 days) ≈ 5.5 N/mm²
Indentation resistance (24 hrs) 15 N/mm²
Indentation resistance (7 days) 25 N/mm²
Embodied carbon (A1–A3) 0.49 kg COâ‚‚ eq/kg

Frequently asked questions

Do I need to prime before using ARDITEX NA®?

No. ARDITEX NA® is designed to bond directly to most common substrates without priming, including concrete, tiles, plywood and old adhesive residues.

Can ARDITEX NA® be used on damp concrete?

Yes. ARDITEX NA® is unaffected by moisture and can be applied directly to damp concrete.

Is it suitable for underfloor heating?

Yes. ARDITEX NA® is suitable for use over underfloor heating systems and for encapsulating heating cables or mats.

How soon can tiles be installed?

At a typical thickness of 3mm, ceramic tiles can be installed in as little as 3 hours under good site conditions.

Delivery & Returns

Delivery Information

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.

Cut-off Time for Genesis Products (Non-Stocked): 11:00 am

NO Next Day Service - Scotland:

We are unable to offer next-day service to the following postcode regions in Scotland.

Postcode: AB, IV, KW, PA .

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 (Kerbside delivery only).

Order Online & Collect In-Store!

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.

Returns Information
  • Please inspect your order upon receipt and contact us immediately (within 48 hours of receipt) if the item is defective, damaged, or if you receive the wrong item, so that we may evaluate the issue and make it right.
  • We will replace any items that are damaged during transit within 30 days of delivery.
  • We accept returns within 30 days of delivery.
  • Please note that customers are responsible for the cost of returning items where the return is due to a change of mind, including ordering the wrong item, ordering more than required, or any other non-fault reason
  • We will process returns and refunds promptly once the items are received at our warehouse.

Returning Trims

Schluter Trims:

  • Returning trims - 35% restocking fee applied.
  • Returning trim with replacement - 15% restocking fee applied.
  • Customers are responsible for arranging the return.
  • If we arrange a return collection, a £35 return item collection fee 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.

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.


Cut-off Time for Genesis Products (Non-Stocked): 11:00am


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 (curbside delivery only).


ORDER ONLINE & COLLECT IN-STORE!

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.