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Hayakawa Rubber Co., Ltd.

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Santac Waterstop

Santac Waterstop

■ Features

  • Santac Waterstop is a composite waterstop consisting of a vulcanized rubber waterstop and Span Seal water sealant which provides both superior adaptability and water stopping performance.
  • The vulcanized rubber waterstop features both high tensile strength and elongation.
  • The rubber Santac Waterstop center valve is an uncut type, which allows for it to be freely modified in order to accommodate displacement in concrete structures without applying excessive force or stress on the waterstop.
  • The Santac rubber waterstop Span Seal water sealant works as a reactive adhesive both after pouring concrete and when hardening concrete, which gives it superior water stopping performance.
  • The stress applied as a result of displacement of concrete structures is supported by the Santac rubber waterstop ribs (protrusions) and side valves.
  • Santac Waterstops have filleted edges and 5φ holes at 1 m intervals to allow for previse positioning of embedded waterstops using binding wire.

■ Applications

Civil engineering applications

Railways/roads Underground passages, subways, box culverts and bridges
Electric power Power plants/ducts
Water supply and sewage Reservoirs, settling tanks, treatment tanks and pump rooms
Agricultural irrigation Culverts, reservoirs, waterways and siphons
Rivers, harbors, etc. Estuary weirs, embankments, bank revetments, etc.

Architectural applications

Underground structures Construction joints between buildings, connection adjustments with existing frames (Sold separately: L type waterstop)

■ E-620-N (6×200 ㎜)E type 3.2 kg/m

  • Displacement and water pressure resistance capacity
Elongation (mm) 20
Subsidence (mm) 40
Water pressure resistance (MPa) 0.1
Minimum wall thickness (mm) 200
E-620-N

■ E-830-N (8×300 ㎜)E type 5.7 kg/m

  • Displacement and water pressure resistance capacity
Elongation (mm) 50
Subsidence (mm) 80
Water pressure resistance (MPa) 0.1
Minimum wall thickness (mm) 250
E-830-N

■ E-1630-N (16×300 ㎜)E type 9.1 kg/m

  • Displacement and water pressure resistance capacity
Elongation (mm) 60
Subsidence (mm) 100
Water pressure resistance (MPa) 0.15
Minimum wall thickness (mm) 300
E-1630-N