When do I use a Sanded Grout or an Unsanded Grout?
Use unsanded grouts for polished marble or soft glazed tiles. Use Sanded Grouts for all other types of tiles. For grout joint widths 1/8″ (3mm) or greater, use Sanded Grout. For grout joint widths 1/8″ (3mm) or less, use Unsanded Grout :: :: Q: How can I clean up stubborn portland cement grout haze? Try using a neutral pH detergent and water with a scrub pad first. Conduct a test area to verify results. Use caution when scrubbing soft glaze ceramic tiles and polished natural stones.