Profile: Catalyst Partners, Inc. specializes in cement additives. Our FloBloc™ 210 cement additive is made of polyvinyl alcohol. It is a dual-purpose cement additive that prevents fluid in the cement from being forced into the permeable formation. It has features such as chemical resistance, increased shear bond, and reduced sedimentation. It also prevents gas or water flow from entering the wellbore. The FloBloc™ 210D is a new version of FloBloc™ 210 which can be used with naphthalene sulfonate dispersant. It does not require a dispersant, but it can be used with a dispersant.