Ardex K 301 Exterior Self Smoothing Levelling Compound 25kg

In stock

  • Fast setting - walkable after 2-3 hours
  • Rapid hardening can withstand light vehicular traffic after 48 hours
  • Easy to mix and apply pumpable
  • Apply from 2mm to 20mm thick in a single application
  • Can be used with suitable resin coatings
  • Suitable for internal and external applications

Product Options:


ARDEX K 301 is ideal for resurfacing exterior concrete areas including driveways, garage floors, walkways, paths, patios and other concrete wearing surfaces exposed to normal foot and rubber wheeled traffic. It is also suitable for permanently wet areas and may be used around swimming pools where it can be tiled onto directly.

Application depth: 2-20mm
Working time: 30 minutes
Walk on time: After 2-3 hours
Light traffic from: 48 hours
Bulk density of powder: approx. 1.37kg/litre
Weight of fresh mortar: approx. 1.94kg/litre
Initial Set (Vicat): approx. 40 minutes
Final Set (Vicat): approx. 2 hours
Compressive Stregth: After 7 days 20.0 N/mm² | After 28 days 28.0 N/mm²
Tensile Bending Strength: After 28 days 6.5 N/mm²
Overcoat time for industrial coatings: Up to 5mm = 2 days | Up to 10mm = 5 days | Up to 20mm = 7 days

More Information

Brand Ardex
Coverage Approximately 7.8m2 at 2mm thick per 25kg bag.
Size 25KG
Type Screeds-Levellers

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