KUNEX® star pipes made of thermoplastic polymer (PVC-P) are used to create and seal dummy joints and crack control joints in in-situ concrete or precast wall structures. Star tubes consist of a soft PVC casing with four stop anchors and two crack guide lips. The star tube casing is stabilised by a hard PVC internal tube. The two crack-formation lips form cracks at predetermined points, which the four stop anchors seal simultaneously.
KUNEX® Star Pipe
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Price list 2025 Shell construction / facade
Valid from February 1, 2025, updated version from 27/09/2025.
Technical Information KUNEX®
Technical information for KUNEX® PVC-P Joint tapes, TPE joint tapes, ABS construction joints, ABS expansion joints, clamp joints, star tubes, puddle flanges and formed parts and accessories
Order sheet KUNEX® Overview (BK00)
Order Sheet
AbP KUNEX® PVC-P Sealing pipe
General building authority test certificate P-5146/481/13 for KUNEX® PVC-P sealing pipes Q60, Q88 and Q175. Valid until 23 March 2023.
PDF, 584.26 KB
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BIM for Installation parts KUNEX® Joint tapes (ALLPLAN)
SUPPARTS© Installation parts
ZIP, 1.08 MB
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Services: From planning to utilisation
We support you at every step of your construction project. With high-quality products including dimensioning software for optimum planning. If the standard product is not suitable for your project, our manufacturers will configure a product that is precisely tailored to your needs.