Joined: July 2004
||Posted: 20 June 2019,17:26
If you want long-lasting dark colour, then it's either a Padang-type granite, a Brazilian slate, or a porcelain, and none of them are particularly cheap.
The granite can be daubed with a sealant to 'enrich' the colour, but, as others have said, that will become a reasonably regular task - maybe every 2-3 years for best effect. Slate and porcelain are not suitable for (don't actually need!) a sealant, and more-or-less stay looking as they are permanently.
Dark shades are very much the in-thing right now, so you *will* pay for the look.
Buying a cheaper dark-ish stone and plastering it with a sealant every so often would probably work out more expensive over the service life of the patio (say 15 years) than it would to spend those few extra quid to buy a better quality stone or porcelain. Bear in mind that a genuinely good quality sealant will cost you 3 or 4 quid/m² and then, when it comes to re-application, you would be well advised to have a professional in to thoroughly clean the surface and prep it prior to re-sealing, which could easily cost you twice as much.
All of a sudden, paying an extra tenner or so per m² doesn't seem that bad an investment!
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