How to prepare a vitrified staircase to paint it?

How to prepare a vitrified staircase to paint it?

Question from Sophie:

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Answer: you absolutely must sand the stairs

Hello Sophie, before painting your staircase, you absolutely need to clean it, sand it and dust it. You will sand it with an electric sander. Before the special floor paint of your choice, do not forget to apply an undercoat which will allow the paint to hold well and which will allow the color to hold longer. Find out all the editorial questions