ARDEX SD-TB

Rapid Drying Industrial Base Mix

ARDEX SD-TB 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 7mm-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 7mm 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