After several YouTube videos, I put this procedure together. What do you hold about it? 1. clean the surface with silicone and wax remover 2. glue the surface with tape tape so that the surrounding varnish is protected when grinding. 3. sand the stone with 2,000 wet sanding paper on a sanding block and water slightly (do not press) to deburring the edges of the notch. Then the spot mi 4. when the place is dried, apply with a fine brush the paint from the paint pen. If possible 2 thin layers, in any case only so much that the paint does not survive. Therefore also the fine brush. Plan 10 minutes per layer to dry. 5. when the paint is dry, apply the clear paint with a very fine brush. In any case so much that the clear paint survives a little. Then let dry for 15 minutes. 6. with 2,000 wet sandings. apier and water the place slightly plan loop (do not press open), remove the tape tape and clean the place with water. 7. Finally polish the place with a polishing machine and medium-sized polish. ready 🙂 Here the videos (clear varnish is not used for them):https://www.youtube.com/watch?v=kD9UZIsVbxMhttps://www.youtube.com/watch?v=G6rjw5kuHCchttps://www.youtube.com/watch?v=lQR5MhZ1TgU