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Continue ShoppingVELOSIT® PC 221 Rapid Setting Plug Cement with Crystalline Effect
- $54.99
VELOSIT® PC 221 Rapid Setting Plug Cement with Crystalline Effect
- $54.99
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.
