Polishing a Terrazzo School floors

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.

School Terrazzo Floor Kilmacolm before cleaning

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 Kilmacolm after cleaning

 
 
Source: Commercial floor cleaning services in Glasgow

250m2 Terrazzo Floor clean in Dagenham food hall

The photographs below are from a large commercial premises we were asked to clean recently in Dagenham, East London. The property had been used as a large furniture retail outlet and the 250m2 Terrazzo floor was in need of a deep clean before the new tenants moved in. The customer had struggled to clean and improve the condition of the floor and the tenant was going to use the premises as a food hall so it was important to get it clean. Time was tight so we completed the clean over a weekend between the old tenant leaving and the shop fitters moving the following week with fridges, counters and shelving etc.

Terrazzo Tiles Dagenham Food Hall Before Cleaning

Cleaning a Terrazzo Floor

To clean the floor we used Tile Doctor Pro-Clean diluted 1 part cleaner to 2 parts water, Pro-Clean is a heavy duty alkaline cleaning product and this was left to soak into the Terrazzo tile for thirty minutes to help soften the ingrained dirt. We then started working the solution into the floor using black scrubbing pages fitted a Numatic buffing machine. This activity was continued for the weekend over and over until we were happy with the condition of the floor.

Terrazzo Tiles Dagenham Food Hall During Cleaning

There were a few stubborn stains in places and we tackled those using Pro-Clean again but this time mixed 50/50 with NanoTech Ultra Clean which adds tiny abrasive particles into the cleaning solution; again this was left to dwell on the Terrazzo for up to one hour in order to penetrate deep into the surface and soften the ingrained dirt before being worked in with a machine. Remove and Go was also used in some areas of the floor to tackle some of the stubborn areas and we also brought in rotary machines with a faster RPM to progress the work as we found the heavier and faster machines made a difference.

For some of the really stubborn stains we concocted a poultice made up of a strong dilution of Pro-Clean and NanoTech Ultra Clean which we covered in a plastic sheet and left on the floor surface overnight; it did improve the stain quite a bit, not perfect but a big improvement. The end result was good and can be seen in the photograph below . There were some rust stains that we could not remove in places, but the customer was ok about this given the deadline.

Terrazzo Tiles Dagenham Food Hall After Cleaning
 
 
Source: Terrazzo Tiles Deep Cleaned in East London