H-BAU Technik SWELLFLEX® waterstop tapes are used for sealing construction joints in concrete constructions. They can be butt jointed as their high swelling power generates sealing pressure against the surrounding concrete. Bentonite waterstop tapes create a self-injecting effect, i.e. the material penetrates into and seals all surrounding cracks and cavities. In contrast, rubber waterstop tapes retain their form, making them ideal for use in combination with prefabricated components. The waterstop tapes are installed between the layers of reinforcement with a minimum spacing of 80 mm.
Advantages
- In line with German watertight structure guideline; with German building code test certificate (abP)
- Proven in building construction, civil engineering and structural engineering
- Can swell and shrink again many times
- Easy to use
- Resistant to ageing
- Suitable for zones subject to repeated wet and dry cycles
- Resistant to chemical and physical stresses
- Can be combined with other joint seals
Technical Details
- SWELLFLEX® BS: made of sodium bentonite/butyl rubber, talcum coated; watertight up to max. 1.2 bar
- SWELLFLEX® BT: made of sodium bentonite/butyl rubber with rain protection coating; watertight up to max. 1.2 bar
- SWELLFLEX® RB: made of butyl rubber, water-swelling resins, polyethylenes and silicones, with retardation layer; watertight up to max. 1.0 bar
