Lay the stone but do not grout it. Ensure that the stone is clean. Use Lithofin Power Clean if the stone needs cleaning. Do not use any acidic cement or grout removing products.
Make sure the stone is dry. Apply a coat of Stain Stop Plus, follow the instructions on this site and the can.
After 20 hours, grout the floor. Take care to remove all grout residue.
When the floor is clean and dry again apply Stain Stop Plus, follow instructions on this site and on the can.
Maintain with Easy Care.
See "Maintain a Stone Floor" at the start of the Questions and Answers system for detailed maintenance information.