PRFX3
PRO FLEX 300
Waterstop · extrudable water-swellable PU sealant
Single-component water-swellable polyurethane sealant in thixotropic paste form, in a 300 cc cartridge extrudable with a standard dispensing gun. Used as a waterstop for watertight sealing of connections, holes, cavities, cracks and construction joints. In the dry state it shrinks back to its original size; on contact with water it expands.
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Water-swellable
- Single-component
- UV-resistant
- Alkali-resistant
- Remains elastic over time
BENEFITS
- 100% expansion at 7 days
- Watertight sealing of discontinuities
Technical data
- Components
- One-component
- Colour
- Rosso
- Expansion at 7 days
- +100%
- Packaging
- Cartridge 300 cc
Data as declared in the Probar Italia 2026 catalogue. For complete and up-to-date values, the manufacturer’s data sheet prevails.
When to use PRO FLEX 300
Applications listed in the catalogue
Construction jointsConnectionsHoles and cavitiesCracking
PRO WSWaterstops and construction joints
PRO WS PLUSWaterstops and construction joints
AQUAFIN-CJ6Waterstops and construction joints
RINGSEAL T21Fibres and accessories