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Can anyone advise the best method and filler to repair small holes in indoor slate tiles. I have attached a photo of the worst case.
Welcome to the Bunnings Workshop community @palmhead2011. It's wonderful to have you join us, and many thanks for your question about repairing slate tiles.
You could potentially fill these voids with a cement repair mix coloured with an oxide. Due to the natural variation in the colour tone of the tiles, it would be difficult to get an exact match, but a functional repair can be achieved. The repairs could be fairly unnoticeable once the damaged portions are resealed with your satin/gloss coating.
The other option is to investigate professionals who specifically deal with natural stone tiles, and either have the damaged tiles replaced or seek assistance with the repair.
Please let me know if you have any questions.
Mitchell
