PRO WS PLUS
PRO WS PLUS
Water-swellable bentonite waterstop with rain-resistant coating
Water-swellable bentonite waterstop with a patented rain-resistant coating applied at the factory, delaying premature swelling caused by rain for 2-3 days — dissolved only by the alkaline environment of fresh concrete. The profile is sodium bentonite in a macromolecular polyisobutylene rubber matrix, for construction joints subject to permanent or temporary water.
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Rain-resistant coating applied at the factory
- Swelling > 500%
- Watertight up to 7 bar (70 mWS)
- Reversible action — swelling and restriction
BENEFITS
- Installation less dependent on weather thanks to the rain-resistant coating
- Self-injecting action: the swollen material penetrates cracks and voids
- Stable shape even in high summer temperatures, non-tacky surface
- High inorganic content: the bentonite keeps its reactive capacity over the long term
Technical data
- Sezioni
- 18 × 24 mm / 16 × 21 mm
- Peso
- 730 g/m / 570 g/m
- Packaging
- Rolls 5 m · box 30 m · pallet 900 m
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 WS PLUS
Applications listed in the catalogue
Construction jointsGroundwater, slope or surface waterAreas with fluctuating water levels
AQUAFIN-CJ5Waterstops and construction joints
AQUAFIN-CJ6Waterstops and construction joints
PRO WSWaterstops and construction joints
BETOCRETE-CP360-WPConcrete admixtures