If you are happy with the appearance of your UN-sealed stone you want a penetrating sealer which is designed to seal the pores without altering or impacting the appearance of your stone or tile surface. 

A topical sealer is most often employed when one is seeking to alter some aspect of the stone, tile or grout’s appearance.  Topical grout sealers such as

·      MARBLELIFE COLORSeal is employed to restore or alter the color of sanded grout.

·      MARBLELIFE Interlok is employed to seal slate while also enriching the color, providing a semi-gloss or a gloss appearance.

·      MARBLELIFE Stone Enhancer is designed to enhance granite or slate color.

In most cases, a penetrating sealer is what you are seeking.