Grout paint. Any experience?

[SergeTiler]

Customer has changed her mind about grout colour. These are glazed ceramic metro style tiles . I am reluctant to re-grout because of the risk damaging the edges. Have you tried painting grout? Which way would you recommend, re-grouting or painting?

 

[Andrew Owens]

I have used Universeal grout colourant a few times works well on new grout, watch the video for instructions.