ARDEX P 4 Primer

Ready Mixed Rapid Drying Multi-Purpose Primer

ARDEX P 4 is a solvent-free primer for internal and external use on absorbent and non-aborbent backgrounds. It produces a textured surface and is especially effective in facilitating the adhesion of cement-based tile adhesives in tile-on-tile applications.

  • Dries in 30-60 minutes
  • Produces a textured surface ‘grip’
  • Can be diluted for improved coverage
  • Easy application, no-mess consistency eliminates drips and splashes
  • White pigment allows clear identification of primed areas
  • Solvent free

Unit Size Available: 2kg, 8kg

Coverage: Approximately 40m2 per 8kg unit

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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