Indian sandstone coming unstuck!

[Slimothy]

Afternoon all,

we had out patio laid with Sawn Mint sandstone last year, on a wet cement bed. Several have now come loose and are rocking, and most of the ones used for coping on the wall have totally come unstuck!

Obviously I need to get these re-laid, but any idea what I should use as the wet cement bed hasn't stuck?

cheers!
Sie

[rxbren]

No sbr was used

[DempseyLiverpool]

As above. SBR on the backs and in the mix.

[Slimothy]

Thanks both! I'll pick up some SBR and get them re-laid