The PS External Priming Slurry by Larsen is a high-performance bonding mortar, expertly crafted to surpass the ≥2 MPa adhesion bond strength requirement for bound system B, as outlined in BS 7533 part 101. Its versatile grey hue and optimal 1-2mm thickness ensure a seamless finish, with a generous 60-minute working time for ease of application. Designed for efficiency and durability, it welcomes foot traffic just 12 hours post-application, making it an ideal choice for both residential and commercial projects seeking a swift return to functionality.