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Supercast SW20 - Swellable waterstop in situ-concrete
Supercast SW20 - Swellable waterstop in situ-concrete
Supercast SW20 - Swellable waterstop in situ-concrete
    Fosroc

    Supercast SW20 - Swellable waterstop in situ-concrete

    Supercast SW20 is a 10mm x 20mm swellable waterstop that can be installed and positively linked into conventional Supercast PVC waterstop networks.  This allows the use of Supercast PVC for expansion joints and Supercast SW20 for construction joints, all the time maintaining an integrated network.

    Supercast SW20 is made from high performance synthetic elastomeric strips. The swelling action is the result of contact between water and hydrophilic groups which are part of the Supercast SW20 ‘Basic polymer’ molecular structure.

    The hydrophilic groups are not subject to extraction or loss of swelling performance by prolonged or repeated wetting. This is a unique feature of the basic polymer. Expansion of the waterstop creates a positive pressure against the face of the concrete joint, thus preventing water passing through the protected joint.

    Advantages

    • Supplied in 5 metre rolls
    • Easy to install
    • Supercast SWX swellable adhesive enables full integration of Supercast SW20 and Supercast PVC networks
    • Solves detailing problems in conjunction with Supercast PVC range
    • Swelling properties unaffected by long term wet/dry cycling
    • Sustains effective seal in wet conditions
    • Delayed swell action allowing extra tolerance on site
    • BBA approved
    Specification
    • Water swellable polymeric hydrophilic waterstops (and attachments) where shown on the drawings, shall be Fosroc Supercast SW20 obtained from Fosroc.  It shall be used in accordance with the manufacturer´s current application instructions.

      Water swellable polymeric hydrophilic waterstop, where shown on the drawings, shall be made from a preformed elastomeric strip which can integrate into existing waterstop networks.  It shall be free from rubber, bentonite or other inclusions.  The waterstop shall have an unrestrained volumetric expansion of up to 200%.  It must not deteriorate under prolonged wet/dry cycling.  Supercast SW20 must be able to withstand a hydrostatic head of up to 100 metres (approved by BBA up to 80 m).  It shall be used in accordance with the methods given in the manufacturer´s current data sheet.

    Technical specification
    • Unique ref.fosroc_supercast-sw20
    • Product familyWaterproofing
    • Product groupJoint waterproofing
    • TypeBuilding Material
    • Date of publishing2021-06-01
    • Edition number1
    Related
    • Material mainPolymer
    • Manufactured inSpain
    Classification
    • BIMobject CategoryConstruction - Joining Systems
    • IFC classificationBuilding Element
    • OmniClass Number23-13 23 19 17
    • OmniClass TitlePreformed Joint Seals

    Region availability

    Europe
    Portugal
    Spain