VELOSIT® PC 221 Rapid Setting Plug Cement with Crystalline Effect

VELOSIT Cementitious Waterproofing Systems VELOSIT® PC 221 Rapid Setting Plug Cement with Crystalline Effect VELOSIT PC 221 is a rapid-setting plug cement engineered for concrete and masonry waterproofing applications. Designed with crystalline waterproofing technology, it delivers extremely fast strength development and exceptional resistance against negative-side water pressure. Plug cement • Rapid setting • Crystalline waterproofing • Leak stopping • Negative-side pressure resistant • No curing required Product Overview VELOSIT PC 221 is designed for fast leak stopping, anchoring, repair work, and acceleration of repair mortars. Its rapid-setting formulation allows surfaces to resist water pressure within minutes while providing strong adhesion to concrete and masonry without cracking or shrinkage. Typical Applications Leak Stopping Waterproofing punctual water leakages in concrete pipes, basement walls, and water tanks. Anchoring Mortar Suitable for anchoring starter bars, radiator mountings, and similar fixtures. Concrete Repairs Fast-setting repair mortar for small surface repairs in concrete and masonry. Repair Mortar Accelerator Can be used as a set accelerator for VELOSIT repair mortars. Waterproofing Systems Ideal for applications exposed to negative-side water pressure. Concrete & Masonry Excellent adhesion performance on properly prepared concrete and masonry substrates. Performance & Properties Working Time Approx. 1 minute Top Coat Application Ready after approx. 10 minutes Water Pressure Resistance Ready within a few minutes Compressive Strength After 1 Hour Approx. 12 MPa Final Compressive Strength More than 50 MPa (7250 psi) after 28 days Water Pressure Resistance 130 m (400 ft.) according to EN 12390-8 Shrinkage / Expansion Minimal under dry and wet curing conditions Curing Requirement No curing required Key Benefits Extremely Fast Setting Designed for emergency leak stopping and rapid waterproofing repairs. Crystalline Waterproofing Effect Enhances long-term waterproofing performance within the concrete structure. No Cracking Minimal shrinkage and expansion reduce the risk of cracking. High Water Pressure Resistance Exceptional performance against negative-side hydrostatic pressure. Strong Adhesion Excellent bonding to concrete and masonry substrates. No Curing Needed Simplifies installation and speeds up project turnaround. Fast Leak Stopping & High-Strength Waterproofing Performance VELOSIT PC 221 provides rapid-setting crystalline waterproofing protection for concrete and masonry structures requiring fast repairs, leak stopping, and durable resistance to hydrostatic pressure.   DOWNLOAD DTS