Corner sealing tapes at wet-area changes of plane
Corner sealing tape belongs in a coordinated wet-area detail, particularly where walls, floors and penetrations meet. It should connect with the selected waterproofing layers rather than sit as an isolated strip.

Selection considerations
Draw internal and external corners and identify pipe or fitting penetrations. Confirm tape dimensions and the compatible embedding or bonding material. A straight-length quantity does not account for every shaped connection or termination.
Inspect the substrate and the continuity of the applied system before covering it. Keep the approved lap and corner instructions with the installer. Avoid assuming that a tape solves structural movement beyond its documented scope; distinguish wet-area sealing details from larger movement-joint assemblies.
Before you specify or order
- Map corners and penetrations
- Confirm compatible waterproofing layers
- Inspect continuity before covering
Relevant BULDX catalogue examples
These records illustrate the product types discussed. Compare the full specifications before selecting; listing here does not establish project suitability or make the items interchangeable.

BDX-WP-TAPE · Product geometry from the catalogue; a family illustration may be shared by variants. Consult the selected technical documents for dimensions and the approved fixing detail.| Product and code | Selected catalogue fields |
|---|---|
BDX-WP-TAPEElastic Waterproofing Corner TapeCorner Sealing Tapes |
|
BDX-WP-FLEECEFleece Waterproofing Corner TapeCorner Sealing Tapes |
|
Common question
Can corner tape replace a structural expansion band?
Not automatically. Their intended movement and installation details may be different.
References and scope
Product fields are from the BULDX catalogue. Confirm the current selected drawing, supporting performance documents and approved project detail before ordering. External references, where listed, provide background guidance and do not certify these products.