Dark slabs to grey slabs! - Apologies for subject repetition

[bigwest]

Apologies if this has been covered before, I do remember finding a post about it but can't rediscover it now I need to!

Basically I laid some granite slabs for a client over a year ago and having arrived fairly dark (although not as dark as the brochure images) they faded to a grey fairly quickly.

We did try a Lithofin product which I think was the colour intensifier, which did leave them looking lovely and dark black, but again this has not lasted.

Now a year on I'm due round to give the whole garden a general tidy and would like to go back with any other ideas for the client to get the slabs gleaming black again.

Does anyone have any suggestions other the Lithofin? Or is this still the best bet?

many thanks in advance.

[Pablo]

Sealing flags to enhance the colour is a once a year job. Don't think there is any product that is much better than Lithofin unless you use something that will give a laquer type effect which will look rubbish I suspect.

[Tony McC]

Use the colour impregnator again, and then seal it with MN Stain Stop. This should extend the life of the enhanced colour by 6-12 months.