SPETEC® BST 300

HYDROPHILIC BENTONITE STRIP FOR WATERPROOFING OF CONSTRUCTION JOINTS IN CONCRETE

SPETEC® BST300 is a black hydrophilic strip 25 x 20 mm made of sodium bentonite and rubber with special fillers and crystalline admixture. SPETEC® BST300 is manufactured in lengths of 5 meter. The SPETEC® BST300 is simply fastened onto an existing joint. In contact with water and in confined conditions, SPETEC® BST300 will swell and stop the water infiltration.

ADVANTAGES
  • Ecologically friendly.
  • Can withstand pressures up to 7 bars.
  • Permanently active system “wet/dry cycles”.
  • Easy to install, no special tools required.
  • Swells more than 300% when in contact with water
FIELD OF APPLICATION
  • Construction joints in concrete.
  • Cold joints.
  • Pipe penetrations through concrete.
  • Joints between prefabricated pipe elements.
  • Joints between pre-casted concrete elements like water tanks and manholes.
  • Joints between floor slabs/walls and secant pile walls/slurry walls/sheet piles…
bst300-kop
Download technical / safety sheet

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