Recommendation for black limestone 'wet look' sealer?

[marlinspike]

We had our patio done about 6 years ago. Lovely black 'wet look' Indian limestone. Has now faded to a matt grey.

Anyone have any experience of the myriad number of sealants on the market? Looking for one that will give a genuine wet look to the black limestone again. There are some with better reviews than others obviously but I was hoping for some trusted feedback from genuine users.

Researched quite a few but it's expensive stuff to try and even the sample sizes are £7 - 10 a throw. Thanks in advance.

 

[brightspark]

dont get the water based stuff. resin is the best about 120 quid for 5 gallon drum in either mat or gloss used on concrete print

 

[marlinspike]

Thanks. I've been looking at the ones that are £50 - 70 for 5 litres. Guessing they are water based as they seem quite runny from the reviews. Will keep looking.