The Ardex P51 Concentrated Water Based Primer & Bonding Agent is a top-of-the-line product that ensures secure adhesion for various surfaces. Ideal for pre-treating substrates before applying Ardex products, this 5kg packaging provides a reliable solution for construction and renovation projects. As a high-performance primer, it is specially formulated to enhance the bonding of Ardex levelling compounds and can be used on both absorbent and non-absorbent surfaces. Its concentrated formula guarantees long-lasting performance, providing you with an efficient and cost-effective solution.