How To Seal Slate Floors. Allow about 5-10 minutes for the sealer to be completely absorbed by the slate. Likewise if you find any cracked parts you can seal them with a sealing material.
Like most other natural stones slate tile flooring requires sealing to aid in water repellency and prevent staining and scratching and sealer should be applied on a yearly basis. Plus it is easier to clean the stone when it is sealed. Then you can simply wipe the excess sealer off the slate tiles.
If it beads then the seal is still intact if it is absorbed then you should reseal the floor.
A below-surface or penetrating sealer will seep down into the material clogging the pores so that stains cannot get in. Steps for Installing and Sealing Slate Tiles. It is not only limited to indoor house flooring. Natural Stone Cleanser.
