Bituminous Emulsion (APP Primer) is a high-quality cold-applied primer used to prepare surfaces before installing APP waterproofing membranes. It penetrates deeply into concrete, metal, wood, and masonry to create a strong bond and improve adhesion. This primer enhances waterproofing performance, seals dusty surfaces, dries quickly, and provides long-lasting protection against moisture. Ideal for roofs, foundations, basements, retaining walls, and all waterproofing projects.