Bentonite waterstop MASTERSTOP

article number 010016

Bentonite waterstop

Dim: 15 x 10 mm green

available in large quantities

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article number:
customs tariff number:
packing unit:
sales quantity unit:
90 m
weight per:
Cart = 20.7 kg

sodium bentonite





volume increase:

 up to 340%, in normal water (pH 7)
 up to 160%, in liquids that are highly aggressive to concrete
 up to 150%, in alkaline liquids



  •  Alkalis in general
  •  Urea
  • Liquid manure and slurry
  • Biogas
  • Radon
  • De-icing salt
  • Substances obtained by means of fermentation
  • Substances obtained by means of composting
  • Waste water in water treatment plants

Further resistances are available on request


size: 15 x 10 mm
90 m per carton
10 rolls of 9 m each
36 cartons per pallet

thermal scope of application:
apporx. . -30°C to +90°C
Store in undamaged and unopened original packaging in a dry place out of direct sunlight.
Can be disposed of at municipal waste landfill sites, taking into account the local waste disposal regulations.

Installation with swelling tape adhesive:
The substrate must be clean, dry, and free of loose particles.
Apply the swelling tape adhesive in the centre of the joint in a uniform bead (width 8-10 mm) out of the cartridge onto the surface.
The subsequent concrete covering must be at least 8 cm on all sides.

Once the swelling tape adhesive has been applied in the centre of the joint, the MASTERSTOP bentonite swelling tape is placed on the adhesive and gently pressed on, moving it slightly back and forth, crosswise to the longitudinal axis.
When the tape is fixed, the adhesive should slightly ooze out on both sides.
This guarantees a complete fixation.
Ready for use after 4 – 6 hours (depending on weather conditions)

Installation with swelling tape grid:
The substrate must be clean, dry, and free of loose particles.
Place the MASTERSTOP bentonite swelling tape in the centre of the joint.
The subsequent concrete covering should be at least 8 cm on all sides.

Position the swelling tape correctly.
Push the fixing grid firmly onto the MASTERSTOP bentonite swelling tape.
Fasten using corresponding nails and either by hand or mechanically using a bolt-firing tool.
The distance between nails must not exceed 20 cm in the longitudinal direction of the swelling tape.

Both, straight and angle joints need to be butt jointed.
The joint areas must be form-fit in order to avoid any discontinuity in the system.

In the case of butt joints in the straight line and the use of swelling tape grids, the joints of swelling tape and swelling tape grid should be offset.


suitable accessories

Swelling tape adhesive

cartridge 310 ml Single-component, solvent-free sealant for bonding of MASTERSTOP bentonite swelling tapes. Usage: 40 – 50 ml/m ...

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