1. Non-toxic cleaning solution is applied to the grout lines and worked into the pores to loosen the embedded dirt and oils.

2. This solution is then neutralized with another non-toxic solution and vacuumed with a commercial vac.

3. Grout Line’s proprietary color sealant is then scrubbed into the empty pores and is brushed to insure an even application.

4. The final step is to clean and buff the entire surface to restore its original shine.