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ARDEX Products

Primers & Joint Fillers

ARDEX P 4™

ARDEX P 4™

Pre-Mixed, Rapid-Drying, Multipurpose Primer
Product Quantity 1 gal | 3.5 gal
Colours White
Working Time Unlimited
Pot Life Unlimited
Dry Time 30-60 Minutes FC
SF Or LF 300 SF | 1050 SF
Area Or Depth Container
Floor Or Wall Floors
Interior or Exterior Interior & Exterior
TF Tack Free
RC Recoat
CG Concrete Guard
CD Concrete Dressing
FT Foot Traffic
LT Light Traffic
DT Dry Through
FC Full Cure
HFT Heavy Foot Traffic (Forklift)
VT Vehicular Traffic
FUT Full Traffic

  • ARDEX P 4™ Pre-Mixed, Rapid-Drying, Multipurpose Primer is a pre-mixed, single-component, rapid-drying, multi-purpose primer for interior and exterior use. The consistency of ARDEX P 4 has been formulated to virtually eliminate dripping and splashes. Use prior to the installation of ARDEX Tile & Stone mortars and ARDEX self-leveling underlayments. ARDEX P 4 produces a textured surface and can be used on smooth surfaces to create a bond. It is the ideal primer for use in areas that may become damp or wet, such as kitchens, bathrooms, porches, etc

  • Ready to use (pre-mixed)

  • For use over most common substrates

  • Textured surface for tenacious bond

  • Drip and splash-free consistency

  • White colour to clearly identify primed areas

  • For use prior to the installation of ARDEX Tile & Stone systems and ARDEX self-leveling underlayments

  • If an ARDEX self-leveling underlayment will be installed, the underlayment thickness must not exceed 1/2” (12 mm)

  • Recommended Tools: Short-nap roller, sponge paint roller or paintbrush

  • As some settling may occur, it may be necessary to stir the ARDEX P 4 prior to use to ensure that all settled components are in full suspension. Apply a thin, even layer to the substrate using a short-nap roller, sponge paint roller or paintbrush. Allow the primer to dry to a thin, opaque white film (min. 30 - 60 minutes; 70°F / 21°C). Once dry, there is no time limit before the tile or ARDEX self-leveling underlayment installation may proceed. However, please note that the tile or ARDEX self-leveling underlayment installation should proceed as soon as possible to avoid surface contamination or damage to the primed surface. If an ARDEX self-leveling underlayment will be installed, the underlayment thickness must not exceed 1/2” (12 mm). To allow for ease of application and to minimize the risk of air bubbles over absorbent substrates, ARDEX P 4 can be diluted with water. For these applications, ARDEX P 4 can be diluted with up to 0.75 quarts (0.7 L) of water per 1-gallon (3.79 L) tub and up to 2.5 quarts (2.4 L) of water per 3.5-gallon (13.25 L) tub. If the ARDEX P 4 is diluted with water, stir thoroughly before use