Solid HARD is a range of additives designed with breakthrough graphene technology for concretes which are exposed to extreme agents.
It is indicated for highly durable concretes with lowered permeability.
"In graphenano smart materials products, graphene serves as a molecular mesh giving structural support to buildings... Graphene is one of the most investigated nanomaterials at the moment, due to the incredible mechanical, optical and electrical properties that it presents, as well as the many improvements it provides to other materials." - accessed on 3/11/19 from https://www.graphenanosmartmaterials.com/en/graphene-graphenano-inside/
unable to locate SDS online