Yes! But quite often the "form release agents" used by the pre-cast manufacturers may be of a wax or oil base. Before treating pre-cast elements with Radcon waterproofing one must ensure no residual form release agent is present as this would repel Radcon penetration. Furthermore any residual release agent may cause "white stains" in patchy areas. If in doubt a trial application prior to a fully committed application may be an appropriate first step.