Luigi’s Answer:
Your tiles will be coated in a thin layer of grout, commonly called grout haze. Sometimes this is hard to see but usually it shows as a greyish haze.
What causes the problem?
When the tiler is grouting your tiles, the grout gets spread across the tile surface as he works it firmly into the joints. As the grout dries he will wash off the excess grout, but there may still be a fine layer behind which the tiler should buff off.
Luigi Suggests:
The haze needs to be removed as it is a wonderful dirt trap that will only make your tiles look worse over time.
If tackled within 2 or 3 hours of laying the haze will probably come off by buffing with a towel. The longer its left the harder it sets.
Like all cleaning, its best to start with the least aggressive approach
- First try washing with hot water. Scrub with a stiff brush or Jiffy pad. Rinse off with clean water, changing the water regularly.
- Then if that doesn’t work try scrubbing with Aqua Mix Nano Scrub - read the label, follow the instructions and always do a test area first.
- Finally for extra stubborn problems use Aqua Mix Phosphoric Acid Substitute. This is an acidic based product so use with care. Read the label, follow the instructions and always do a test area first. Even better get hold of your tiler to finish his job properly!!
Once your tiles have been cleaned, seal the grout with Aqua Mix Grout Sealer or similar.
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