Can waterproof adhesive be directly applied to ceramic tiles?
1、It is not recommended to apply waterproof adhesive directly on tiles. The waterproof adhesive must be applied to a clean, solid, and level substrate to ensure strong adhesion. Applying waterproof adhesive directly on tiles will not effectively achieve waterproofing.
2、The porcelain surface has a glazed layer, and the waterproofing layer is prone to detachment from the surface, and cannot be firmly bonded to the substrate. The market offers products with claims like "a waterproofing agent that doesn't allow water to pass through and doesn't damage the tiles." However, it is not a waterproofing adhesive. It needs to be mixed with cement and concrete, and it is an additive that does not have waterproofing properties.
3. Waterproofing agents achieve waterproofing effects by mixing with cement and mortar, increasing the density of the cement. However, this is a rigid waterproofing method, which can crack over time. To completely seal leaks, it is necessary to remove the decorative and protective layers.
What are the key considerations for waterproofing?
1. Waterproof adhesive must be evenly applied to the entire waterproof floor or wall surface, without any gaps. The waterproof layer must be completely bonded to the substrate and should not have any air bubbles, cracks, or detachment. Additionally, the coating thickness must meet the product's specified standards, and the coating height should be consistent throughout the rolled area.
2. Waterproofing requirements vary depending on the space. For single-story dwellings, waterproofing should be applied to both the floor and walls. For other floors, waterproofing should be applied to bathrooms, kitchens, balconies, and basements. Specifically, the wall surface of bathrooms should be waterproofed to a minimum height of 1.8m, while all four walls of basements should be fully waterproofed.
3. Waterproofing for special areas must be properly executed. Areas such as pipes and drainage systems between floors are prone to water exposure, so proper waterproofing is essential. If water pipes are embedded within the wall, it is necessary to create a recessed area within the wall to accommodate the pipes. The recessed area must be prepared with a properly prepared substrate, and then coated with a waterproof coating.