The Slip Test Device is used to determine the slip (anti-sag performance) of ceramic tiles applied with tile adhesives on a vertical surface, allowing laboratories to verify compliance and compare adhesive formulations under repeatable conditions.
The method relies on a standardized concrete test panel and a rigid reference straight edge to establish a consistent initial position, so any movement of the tile can be measured precisely after the panel is raised to vertical.
Adhesive application is controlled using defined trowel types and a specified notched geometry, ensuring the adhesive bed profile is consistent and comparable between operators and laboratories.
Tile placement is standardized by using precision stainless-steel spacers positioned against the reference edge, minimizing variability in alignment and starting gap.
A defined loading force is applied for a controlled time to seat the tile before the panel is set vertical, reflecting practical installation behavior while keeping the test strictly controlled.
Slip is quantified by accurate dimensional measurement at multiple points using a high-resolution caliper, supporting clear reporting and quality control decisions for tile adhesive performance.
