ARDEX K 301

Exterior Self-Smoothing Levelling and Resurfacing Compound

ARDEX K 301 is ideal for resurfacing exterior concrete areas including damaged drives, paths, patios and larger surface areas such as car parks and court yards.

  • Cost effective solution for smoothing rough or impact damaged concrete
  • 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
  • Ideal for levelling floors prior to the application of an ARDEX DPM
  • Can be used with suitable resin coatings
  • Suitable for internal and external applications

Unit Size Available: 25kg

Coverage: Approximately 7.8m2 at 2mm thick per 25kg unit

Download all documents

Tile adhesive
Notch size / bed thickness
Area to be covered

How much will I need?

The number of kg required = kg
The number of units required for your project = units.

The calculation above indicates the approximate number of units required, and does not allow for site conditions or wastage

Select product
Depth mm
Area to be covered
Select product
Depth mm
Area to be covered
Select product
Depth mm
Area to be covered

The calculator below will tell you how large an area a unit of the selected grout will cover, based on the dimensions that you supply. Simply enter the required figures in the boxes below and view the results in the results box.

Tile Dimensions Grout
Length (mm)
Breadth (mm)
(check joint width)
Joint Dimensions
Width (mm)
Depth (mm)

All tile and joint dimensions are rounded up to the nearest number (no decimal points).


Results - based on figures and product chosen above.
Result kg per square metre. Therefore:
a kg unit will cover -

How many unit(s) will I need?

Enter the area of your project here: m²   
The number of kg unit(s) required for your project =

The calculation above indicates the approximate number of units required, and does not allow for site conditions or wastage