Sealing Polished Marble Tile Before Grouting
Polished marble shouldn t need sealing before you apply grout but tumbled marble does it s so absorbent that the grout itself will stain it during the installation process unless you seal it.
Sealing polished marble tile before grouting. However rough cut marble is much more porous than polished marble and can be a candidate for sealing. Pre sealing is sealing the floor or wall surfacing material before it has been grouted. I used this sealer and just put it in a spray bottle and sprayed three coats on the ungrouted tile. Countertop specialty comment.
After grouting the tile looks dull. This is usually polished marble installed as larger slabs and not as individually cut tiles. The sealer then keeps the grout from sticking to the face and makes clean up easier. If this is not done minute particles of grout will sit in the pores and result in a hazy surface appearance.
All natural stone tiles polished shiny honed matte or tumbled antiqued are porous therefore sealing before grouting is essential to fill these pores with protective sealer. Then i used a grouting sponge to wipe off any excess. Marble sometimes gets circulary etches scrathed into its polished face with sanded grout. Coverage grout grouting liquid marble not paint seal sealing tile tile grout tiling discuss issues with not sealing marble before grouting.
Then wait 3 days minimum after grouting giving time for grout to cure and then seal the grout. Most grout haze removers will etch marble. Do you polish the marble before sealing. This must be removed but careful what you use.
You can apply another coat of sealer on the tile too. Before you consider sealing your tile keep in mind that there is marble that does not need to be sealed. If the tile is dull after grouting then it is probably due to grout haze on the face of the tiles. This is done because typical grouting involves packing the grout into the joints by smearing it over all or part of the material face.
If you are unsure which marble you have.