UltraScape Pro Prime Slurry 25 kg is a high-performance, polymer-modified cementitious primer engineered to form a superior bond between paving elements (natural stone, porcelain, concrete flags, clay paviours) and UltraScape bedding mortars. When mixed with water, the pre-blended powder becomes a smooth slurry that adheres to both your paving units and the bedding layer — ensuring even contact with aggregate particles and achieving adhesion strength above 2.0 N/mm² as per BS 7533 standards. This bond dramatically reduces the risk of slab movement, weed ingress, or joint failure — common issues when paving elements are laid directly onto mortar.

Applied just before laying, the slurry (1–2 mm thick) primes the underside of slabs or pavers and the base layer, creating a robust, long-lasting foundation for patios, driveways, pathways, or public-realm paving. A single 25 kg bag covers roughly 15 m² (at 1–2 mm thickness) and offers a workability window of about one hour at 20 °C. For contractors or landscapers seeking expert-grade adhesion, longevity, and structural integrity, UltraScape Pro Prime is the professional-standard primer for reliable paving installation.