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