ARDEX P4 Pre-Mixed Primer – 1 Gallon

Get surfaces jobsite-ready fast with ARDEX P4 Pre-Mixed Primer (1 Gallon). This rapid-drying, ready-to-use primer creates a textured bonding profile to support strong adhesion—especially when prepping for tile and stone installs in wet areas and demanding remodel conditions.

Features & Benefits 

• 1-Gallon Pail – 3.79 L of pre-mixed primer for efficient surface prep

• Ready to Use – no mixing required (stir if needed)

• Rapid Drying – dries in 30 minutes or less (conditions dependent)

• Splash & Drip-Free – cleaner application on walls and floors

• Textured White Primer Film – improves mechanical bond for tile, stone, and underlayments

• Great for Remodels – supports prep for tile-over-tile and wet-area work

Coverage

• Up to 300 sq. ft. per 1 gallon
  Coverage varies by substrate texture and porosity.

Compatibility

Best for prepping common substrates prior to tile/stone installation, including tile-over-tile applications and wet areas (follow ARDEX technical guidance for your substrate).
Confirm needed: your exact substrate list + any exclusions you want stated on the page.

Specs

• Drying Time: Minimum 30 minutes

• VOC: < 7 g/L (calculated SCAQMD)

• Packaging (This listing): 1-gallon (3.79 L) pail

• Storage: Cool, dry area; keep from freezing; avoid direct sun

• Shelf Life: 1 year (unopened)

• Warranty: ARDEX L.P. Standard Limited Warranty applies