A customer in Leyland near Preston reported a grouting issue with their porcelain tiled kitchen floor, the tiles were fine but the grout had become discoloured and grey, they were also finding it difficult to keep clean. This is not an unusual story for Porcelain or Ceramic tiled floors which are generally very low maintenance and you find the grout needs attention before the tiles do.
Applying Grout Colourant
On arrival I set up my equipment and cleaned the floor to make sure all the grout joints were free from any dirt etc., I then did a colour test on a less obvious part of the floor with the grout colour. I wanted to make sure the colourant would take to the grout and also to make sure the customer was happy with her colour choice.
The process for grout colouring is fairly tedious but straightforward, it involves giving the bottle a good shake and applying a small amount to a toothbrush and working the grout colorant into joints using a back-and-forth motion. I find the best way to apply it is by working in small areas and adding thin even coats to limit the amount of grout colorant that gets on the tile. They were large format tiles covering 9m2 so I only needed one bottle of buff grout colourant to do the entire floor.
After the Grout Colorant dries (it takes between twenty and sixty minutes depending on how warm the house) you mist the surface with water and let stand for five minutes, excess grout colorant is then removed from the tile surface using a white nylon scrub pad.
The floor was ready for surface traffic in 2 hours but there was a white mist over the floor which you can get with porcelain tiles so I fitted a white buffing pad to my rotary floor polishing machine and buffed the floor to remove the power and water marks, once finished the floor looked like new. Before leaving I left the customer with some after care instructions and how to keep it floor looking good for the future.
These pictures are of a Sandstone floor installed in a house in Leyland, the dog seems quite content with the floor but the owner wasn’t; the trouble with Sandstone is that is a relatively soft sedimentary stone which doesn’t provide the best foundation for a sealer causing it to breakdown faster. To counteract this I usually apply as much sealer as the floor will accept and then leave any spare with the customer so they can top it up when the shine starts to wear off. I find this works better than to let the Sealer break down as this will allow dirt to get trapped in the stone and then you have to start all over again with the clean and seal. Applying a regular top up of sealer will keep the floor in good condition for several years before it needs to be done again saving the customer time and money in the long run.
Cleaning Sandstone flagged flooring
We cleaned the Sandstone flags with a 1 to 10 dilution of Tile Doctor Pro-Clean and warm water agitated with a Black buffing pad attached to our floor scrubbing machine. The soiled solution was then removed using a wet vacuum and the floor rinsed off with water, judging by the colour of the dirty water it was clear we had managed to dislodge a large amount of dirt. The process was repeated a few times until we were confident the floor was as clean as it could be and then we left it to dry overnight.
Sealing Sandstone floor tile
The next morning the floor had dried and we proceeded to seal the sandstone with Tile Doctor Seal and Go which is highly recommended for this type of stone providing a good level of stain protection combined with a nice low sheen finish. Five coats of Tile Doctor Seal and Go were needed to cover the floor which can take some time to apply as each coat needs to dry first before you can apply the next.