Hi can you advise what is the best paint to use on external coping stones they are currently on top of garden wall they were white but now dirty and was looking to paint dark grey if possible any advice would be appreciated
We would suggest 3 coats of Zinsser AllCoat Exterior Satin (Water Based) - we have it available in dark grey (Anthracite Grey) as standard, or can mix in any RAL, NCS, and British Standard colour.