These photographs of a Slate tiled kitchen floor are from a house in Lochwinnoch in the west central Lowlands of Scotland. You can see that the slate and grout was looking very dull and any sealer that was present had failed leaving the stone in need of a deep clean and re-seal.
Cleaning Slate Floor Tile and Grout
On the first day we stripped the floor of any remaining sealer using Tile Doctor Pro-Clean mixed 50/50 with Remove and Go, this was left to dwell for 5-10mins before scrubbing it in with a scrubbing pad and then extracting the slurry with a wet vacuum. It was important to ensure all the sealer was removed in order to get an even finish and to avoid any compatibility issues when re-sealing later.
After this we focused on cleaning the grout using more Pro-Clean this time worked in using a stiff grout brush by hand. Once done the floor was given a thorough rinse using a diluted solution of Tile Doctor Neutral Clean to remove any trace of cleaning solutions that may impact the sealer and again using the wet vacuum to get the floor as dry as possible.
Sealing Slate Floor Tiles
The floor was left to dry off overnight and then we returned on the second day to seal the slate with Tile Doctor Seal and Go which is a water based sealer (no smell) which adds a nice sheen to the tile and gave the desired finish. Slate is quite porous so five coats of Seal and Go were required to ensure the floor was fully sealed.
Cleaning and Sealing a Slate tiled floor in Renfrewshire
This Terrazzo Floor was at the entrance to a School in Kilmacolm where as you can see from the photograph below had come under some heavy use and was now proving difficult to keep clean. We were asked to give it a deep clean, polish and re-seal therefore making it much easier to maintain going forward.
Cleaning a Slate Floor
Hard stone surfaces such as Terrazzo have to be burnished to get the shine back and this process basically involves cutting back the surface with a set of diamond encrusted burnishing pads.
Before burnishing however the floor was swept out to remove any loose debris that could get caught under the pads and scratch the floor. Once that was done a Coarse 400 grit burnishing pad was fitted to our heavy rotary machine and run over the surface with a little water to help lubricate the process, the coarse pad removes surface dirt and coatings such as sealers. Once that was finished we moved onto the medium 800 grit pad which is the first step of the polishing process and also removed ingrained dirt. The surface of the Terrazzo is still quite rough at this stage so once complete with the medium pad the fine (1,500 grit) is used smooth down the surface and continue to build up the polish in the floor. The last pad is a very fine (3,000 grit pad) and this pad builds on the existing polished effect to create a high shine finish.
All these pads are applied with water and the resultant slurry needs to be cleaned off during the process with the final step of giving the floor a thorough rinse with clean water, I can recommend a wet vacuum at this point as it makes light work of removing liquids from floors.
Sealing a Terrazzo Floor
Once the floor was completely dry it was sealed using two coats of Tile Doctor Colour Grow which is a great product to use of these characteristic floors as it brings out the colour in the floor as well as providing on-going stain protection. The floor was then buffed using a white buffing pad to bring up the shine further; needless to say our client was extremely happy with the finished result.
School Terrazzo floor Cleaned, Polished and Sealed