Achieving the Flawless Seamless Finish
Large-format porcelain slabs and rectified tiles demand precision substrate preparation. Even a 1mm deviation in floor flatness over 2 meters can cause lippage along slab joints if proper leveling systems are not utilized.
Crucial Installation Invariants
- Substrate Flatness: Ensure the floor or wall substrate has a maximum deviation of less than 2mm over a 2-meter straight edge.
- Double-Butter Adhesive Application: Apply polymer-modified adhesive (C2TE S2 grade for slabs over 120cm) to both the substrate and the back of the tile using a 10mm notched trowel in parallel straight lines.
- Mechanical Leveling Clips: Use self-leveling wedge clips every 40cm along all perimeter edges to eliminate lippage during adhesive cure time.
- Perimeter Expansion Joints: Maintain a minimum 6mm perimeter expansion gap along walls and columns covered by baseboards or silicone sealant.