Simpson Strong-Tie® CIP-F is a flexible, peelable and fast-curing polyurea paste-over material. It is used to temporarily seal cracks and to secure injection ports over concrete prior to epoxy or urethane foam injection repair. CIP-F can be peeled off at the completion of a crack injection job by pulling on starter tabs placed under the lead edge surface at the time of application or by prying under the paste-over. CIP-F Flexible Paste-Over Adhesive and Crack Sealant (22 oz.) (Pack of 10).