KUNEX® thermoplastic (PVC-P) star tubes create and seal dummy joints and target rupture joints in concrete. Star tubes consist of a soft PVC cladding with four stop anchors and two rupture formation lips. The star tube is installed with an inner tube made of hard PVC for the purpose of stabilising the cladding. The two rupture formation lips are used to create the target rupture in a controlled manner and the target rupture simultaneously seals the four stop anchors.

Tender text

You can find the appropriate tender text for this product on these portals:


  • Based on PVC-P raw materials
  • Very good welding properties
  • Hard PVC inner tube for stabilisation purposes
  • Star tube also available with eyelets

Technical Details

  • General supervisory test certificate
  • Bitumen-compatible material available on request

Whatever you plan.

We accompany you with expert advice, for every application. For day-to-day work in which much becomes easier and for increasing gratification in successful results.

Consultant Search
No items in memolist
inclusive accessoires