Category: Slate (Page 2 of 2)

Some detailed instructions with regard to cleaning slate floors:

If the slate floor is adversely covered in cement or grout residue:

1. Use water to pre-wet the floor.

2. Apply some phosphoric acid-type cleaner solution to the floor – mixed with 1 part cleaner to 5 parts water to begin. (You can use a stronger mix if required). **PLEASE NOTE: Always conduct a small test on a relatively inconspicuous section of the floor first, before you begin.

3. Leave the cleaner to dwell on the floor for a few minutes

4. Agitate the floor and cleaning solution with a scrubbing brush (nylon bristle and not metal).

5. Soak up the cleaning solution remaining on the floor. Rinse well with fresh water, agitating again so you can get rid of any residual acid cleaner.

6. Make an assessment of the floor at this stage. You may need to apply an additional treatment of the cleaner.

If your slate floor only requires routine cleaning we would recommend a neutral cleaner like Ezy Clean by All for Stone – this is a mild cleaner and is safe and suitable for cleaning slate on a regular basis.

For more intensive slate cleaning, where the dirt is not mineral- based, we would recommend the use of a heavy-duty alkaline cleaner like Xtreme Clean. This a powerful cleaner and degreasing solution. When applied to the floor, leave to dwell for between 5 and 15 minutes, depending on how bad the contamination. Then agitate by scrubbing with a nylon or natural bristle scrubbing brush. Clean up remaining the dirty solution and rinse well with clean water.

The critical elements here are the dwell time and the rinsing. Alkaline-cleaning solutions need time to work. Once you have “extracted” the dirt from the floor it will be suspended in the solution so you absolutely must remove it – on no account leave it to dry naturally.

Copyright Ian Taylor and The Tile and Stone Blog.co.uk, 2013. See copyright notice above.

Cleaning slate isn’t too difficult. It’s vital, however,to know what kind of dirt or contaminant you are trying to remove before you can make a decision as to which cleaning product is best suitable.

Slate comes in many different colours and finishes. Some of these are smooth whereas others have a textured surface. Undoubtedly, slate is a very popular material for flooring right now.

Slate generally has good resistance to mild acids so this gives you a much wider choice of cleaning materials than you would have with more acid-sensitive stones like limestone or marble.

So, how do we go about cleaning our slate floor?

First, you need to check whether the contaminant is mineral based? e.g. grout staining, cement, rust or general dirt. If it is, you would be advised to use a mild acid cleaner such as one based on phosphoric acid, for example, Grout Haze Plus . Beware though as any acid cleaner may etch the grout also.

In most other situations where you have, for example, general dirt and grime, wax, oil or a general build-up of old polishes etc. I would recommend using a strong alkaline cleaner such as Xtreme Clean for periodic intensive cleaning. For everyday cleaning, I’d recommend using a mild, neutral cleaner.

Here’s an Expert’s 6 – Step Guide to Cleaning Slate:

1. Ensure your slate is protected with a high-quality sealer: either an impregnating sealer such as Seal Gold+ which will give you a natural look with a mat finish and below surface stain protection. Or, if you prefer the look of wet slate, in so far as the darker colours, but still want a natural, mat, no-sheen finish, then look a good quality enhancing sealer such as Enhance ‘N’ Seal. Alternatively, you can use a coating sealer for a pleasant low sheen gloss which really helps any ongoing cleaning.

2. You must eliminate all grit – this is the major cause of all wear to slate floors. Ideally, place a dust mat both inside and outside the room which will help remove grit from shoes and prevent it from spreading to the slate floor.

3. Sweep and vacuum the slate floor regularly. This will also help remove grit from the surface of the floor.

4. Mop up and soak up isolated spillages as they happen. You shouldn’t leave strong contaminants such as coffee or wine to dwell on a slate floor.

5. Wash the slate regularly intervals using a mild, neutral cleaner. This will clean the slate but it won’t damage the stone, grout or the sealer used.

6. Less frequently, carry out a deep clean. For this, we recommend using a high alkaline cleaner. More in Part 2.

Update 22/01/13 – Check out this case study on cleaning slate

Copyright Ian Taylor and The Tile and Stone Blog.co.uk, 2013. See copyright notice above.