CKS T21-T34
TAPPI CKS
Water-swellable rubber caps for PVC spacers
Watertight closure device for tubular PVC spacers. Rigid polyamide core with a corrugated water-swellable rubber cap. Tested against negative pressure up to 5 bar.
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Rigid polyamide core
- Water-swellable rubber cap
- Tested against negative pressure up to 5 bar
BENEFITS
- Watertight closure of the spacers
Technical data
- Sizes
- ø 21 / 24 / 26 / 32 / 34 mm
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 TAPPI CKS
White tankRetaining wall in groundwater
Applications listed in the catalogue
PVC spacersBelow-grade structures
How it works
They close the PVC formwork spacer tubes, which would otherwise remain water paths through the wall. The rigid polyamide core provides mechanical sealing; the corrugated water-swellable rubber cap expands on contact with water (+200/+600%) and seals the hole. Tested under negative pressure up to 5 bar; diameters 21–34 mm.
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