I have done a job for a client with a similar issue and we ended up using paint stripper followed by buffing the floor until no paint was left.
Cleaning paint off slate tiles.
Some of these are smooth whereas others have a textured surface.
Using a clean rag liberally.
Mix up your cleaning solution.
How to remove paint from slate removing paint splatters.
Hold the razor blade as close to parallel to the slate as possible when you scrape to avoid scratching the surface.
Paint remover step 1.
Combine half a cup of vinegar half a cup of lemon juice and half a cup of baking soda in the bowl.
For tougher stains mix together peroxide and baking soda into a bubbly paste.
The area should be moist when you scrape.
Please let me know if you try this and if you do if it works.
Hi you could also use a buffing pad on an orbital sander.
Apply the solution to a clean cloth.
As slate is soft you will be able to sand it off the slate before you reseal.
While acidic cleaners are generally not recommended for slate because they can etch natural.
Get a stanley blade and shave the paint off like you would a cut throat on your skin its not been absorbed by the slate its only on the surface.
Slate floors countertops and other surfaces are often sealed with a clear urethane finish.
Clean painted tiles with household cleaner or a 50 50 solution of white vinegar and water.
Try 1 2 cup fabric softener to 1 gallon very warm water.
Natural paint remover combine equal parts water and white vinegar to make a natural paint remover if you need or want an alternative to the.
Re apply the lacquer thinner if necessary.
Soak towels in it and put them on the floor.
After the bubbles die down apply the paste to the stain and let it set.
Slate comes in many different colours and finishes.
Any scratch marks are cured by puttin a little sealer on them.
This should form a paste.
Repeat the process with the other.
If necessary add a little water or more baking soda to make the paste thick but manageable.
Then wipe with a.
Smooth the cloth gently over a painted tile.
Scrape off paint with a.
Leave the towels for 10 15 minutes and when you take up the towel clean the area with magic eraser from dollar tree.
Cleaning slate isn t too difficult.
Scrape the paint up with a razor blade placed in a razor blade holder.
Then wipe the slate clean with a damp warm.
The hot vinegar will soften the paint.
When the slate is sealed.