Tile adhesive is a cement-based substance used to bond tiles to surfaces, such as walls or floors. It typically consists of a powder that must be mixed with water before application. Tile cleaners, on the other hand, are products designed to remove dirt, stains, and other debris from tile surfaces. They can be liquid, powder, or paste and typically contain abrasives or chemicals to aid in cleaning. It is important to choose the right tile adhesive and cleaner for the specific surface and tile type to ensure a successful installation or maintenance task.