RINGSEAL T21
RINGSEAL T21
External gasket for formwork spacer tubes
External water-swellable rubber gasket fitted around CKS T21 spacer tubes (Ø 22 mm). It seals discontinuities in the concrete and protects below-grade masonry from localised water ingress.
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Water-swellable rubber
- For Ø 22 mm spacer tubes
BENEFITS
- Seals discontinuities in the pour
- Protects against localised water ingress
Technical data
- Diameter
- Ø 22 mm (tubi CKS T21)
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 RINGSEAL T21
White tankRetaining wall in groundwater
Applications listed in the catalogue
Formwork spacersBelow-grade structures
How it works
Water-swellable rubber gasket fitted around the outside of CKS T21 spacer tubes (Ø 22 mm) before pouring. Embedded in the concrete, it expands on contact with water and seals the gap between tube and concrete, protecting below-grade walls from localised seepage.
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