Victorian mixed colour tiles cleaning

[cheekycharly]

Hi all my new property has a tiled floor in the entrance which looks like it needs a good clean to restore the vibrant colours it once had. I have tried regular househole products which clean it but dont make it gleam. Is there any products I could be using on this type of floor to restore it or seal it.

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Link removed, pic attached. Mod 2.

Thanks

[dewaltdisney]

You can use a dilute hydrochloric acid to clean them up. Test a small area first and use eye, skin and breathing protection for yourself. Have a search on Amazon for muriatic acid

DWD