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It is extremely important when trying to remove grout haze from your patio that the surface of the paving is acid resistant such as ceramic tiles, porcelain, brick, clay and quarry tiles. Never use grout haze removers on natural stone paving as they are acid based products and can cause permanent damage to the surface of the stone.
Introduction
It is not uncommon to see grout haze left on porcelain paving slabs after installation, this is caused by insufficient cleaning after grouting or after using FlowPoint which leaves residue on the surface of the paving slabs. It is very important when using these products that all residues are completely removed, we would always recommend use a large good quality sponge ideally coupled with a Wash Boy System and then continue to clean until the slabs are completely free from residue and the water is running clean.
Grout haze can appear in the form of white powder, glossy patches or dull smears or streaks on the surface and especially around the edges of the porcelain paving slabs. This residue looks very unsightly and can spoil the overall appearance of your porcelain paving installation.
What products to use
To successfully remove dried on grout residue from porcelain paving slabs you will need to use a specialist grout haze cleaner, such as Universeal Grout Haze Remover. There are other products on the market that will do the same job, but always read the instructions on the bottle before commencing any application as they many differ to the instructions below.
These products dissolve the grout residue left of the surface of the porcelain and will easily remove this as well as many other problems such as, mortar and cement grout, efflorescence, encrusted and engrained dirt, as well as natural calcium & limescale deposits.
It quickly and easily dissolves whilst removing any grout film or residue from the ceramic or porcelain tile surface within minutes without damaging the tiles or grouting.
The cleaning process
Image above some rotary buffer in use.
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