Edencrete is not the only nano concrete admix. First graphene...

Edencrete is not the only nano concrete admix. First graphene have their Puregraph AM liquid concrete additive available.It is not carbon nanotubes, but graphene based, otherwise pretty similar. I have been trying to get my hands on some for ages because it appears the supply of Edencrete, given their precarious financial position, is rather tenuous.
The First Graphene product is manufactured in St Africa and they've had trouble getting it here, but it's now available for sale, although at the price they've quoted me (which I think must be an error), I can't see them making any sales as it's cost is way more than than the cost of the concrete it is used to treat. Over 4 times the cost of Edencrete. If the price is not a mistake I certainly won't be even bothering to trial it.