Non stock item

Ardex SD-T B Rapid Drying Industrial Base Mix 25kg

Non-Stock | | 2-3 Working Days

  • COST EFFECTIVE - base mix used prior to ARDEX K 80 topping layer
  • USER FRIENDLY - The ARDEX K80/SD-TB System can be installed from 5mm - 50mm over existing concrete surfaces

  • VERSATILE - can receive tiles and natural stone, can be hand mixed or pump applied
  • Rapidry Formula, ensuring drying time of 254 hours regardless of thickness


ARDEX SD-T B is a pumpable Subfloor Pre-Levelling Base Mix, pre-blended with graded aggregate to give significant cost savings on floors that require greater application thicknesses. Designed to pre-level concrete surfaces prior to applying ARDEX K 80.

  • Apply from 10mm-50mm in one operation
  • Rapid hardening – walkable in 2 hours regardless of thickness
  • Can be hand mixed or pumped

Unit Size Available: 25kg

Coverage: Approximately 1.3m2 at 10mm thick per 25kg bag

Working time at 20°C:
Approximately 15 minutes

Flow life at 20°C:
Approximately 10 minutes

Initial Set (Vicat):
Approximately 1½ hours

Final Set (Vicat):
Approximately 2 hours

Compressive Strength:
(EN 196) 28 days approximately 30 N/mm²

More Information

Brand Ardex
Coverage Approximately 1.87kg / m2/mm
Size 25 kg
Type Screeds-Levellers
Width (mm) 0

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.

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.


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