Hyperplast Ultra 100 Special hardening accelerator for cementitious materials (Formerly known as Hyperplast Fast) You might also be interested in Flocrete Antifreeze S33 Water reducing and antifreeze admixture Flocrete Antifreeze A Water reducing and antifreeze admixture Flocrete AC100 Non-chloride accelerating admixture Proset AF Alkali free sprayed concrete accelerator