Description Product Overview ARDEX P 9 is a water-based, single-part primer developed to improve adhesion of selected ARDEX products to smooth, dense, and non-porous substrates. It is designed for use prior to tile adhesives, levelling compounds, and waterproofing systems, ensuring reliable bonding across a wide range of surfaces. The formulation is solvent-free and low VOC, making it suitable for both internal and external applications. It provides a consistent bonding bridge over substrates such as existing tiles, fibre cement, timber, and concrete, allowing follow-on applications with minimal downtime. ARDEX P 9 is commonly used in flooring and tiling preparation where standard primers are not suitable for dense or low-porosity surfaces. Key Features Single-part primer – no mixing required Improves adhesion to smooth, dense, and non-porous substrates Water-based, solvent-free, low VOC formulation Suitable for internal and external applications Fast drying for reduced downtime on site Compatible with ARDEX tile adhesives and levelling compounds Easy application by brush or roller Suitable for floors and walls Applications Priming existing ceramic and glazed tiles Preparation of timber, plywood, and particleboard substrates Use over fibre cement sheeting and compressed boards Priming concrete, renders, and screeds Preparation prior to ARDEX levelling compounds and tile adhesives Use before waterproofing membranes (non-immersed conditions) Notes Ready to use – no dilution required unless specified Apply evenly using brush or roller Allow to dry before applying subsequent products Typical drying time approx. 20 minutes (site dependent) For highly absorbent substrates, dilution may be required (refer to system specs) Ensure substrate is clean, sound, and free of contaminants Not suitable for permanently immersed conditions Technical Information Technical Specifications: Type Water-based single-part primer Form Liquid Function Adhesion promoter for dense and non-porous substrates Coverage Approx. 6–10 m² per litre (substrate dependent) Drying Time Approx. 20 minutes (site dependent) Application Method Brush or roller Substrates Tiles, concrete, timber, fibre cement, renders, screeds Location Internal and external use VOC Low VOC, solvent-free Compatibility Tile adhesives, levelling compounds, waterproofing systems Packaging 1L and 4L containers This primer is designed for use where standard primers are not suitable, particularly on dense or low-absorbency surfaces. It provides a reliable bonding bridge to support consistent performance of flooring, tiling, and waterproofing systems.
