The old tiles are beautifully stitched. How to crack them?

Pay attention to whether there are gaps in the old tiles before they are stitched beautifully. Only when there are gaps can they be stitched beautifully. 1, joint cleaning: use a joint cleaning cone to clean the sawdust and dregs at the joint of ceramic tiles. If the joint of the tile is completely empty after cleaning, you need to use the joint filler as the base, and then leave a gap depth of about1.5 mm. 2. Sticker: stick the texture paper horizontally and vertically along the edge of the tile gap, and try to overlap the edge of the tile when sticking. 3. Joint filling: Squeeze the joint filling agent along the gap, and apply force evenly during operation. If the sealant can still flow after filling, it can be scraped flat with a scraper or ice cream stick. 4. Finally, tear off the textured paper. If the dry preparation is taken out by masking paper, it should be refilled.