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Visqueen Ultimate Top Hat Unit 110mm Pallet of 300

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Product Description

Visqueen has designed the Ultimate Top Hat unit to create an effective seal around service pipes. When used in conjunction with all Visqueen damp proof membranes, gas and hydrocarbon allow the protection systems to provide continuity of protection at service pipe penetrations. The Visqueen Ultimate Top Hat Units are made from Visqueen Ultimate HC BLOK and come supplied with a metal jubilee clip.

Features & Benefits: Visqueen Ultimate Top Hat Unit 110mm Pallet of 300

  • Low Permeability to Hydrocarbon substances and vapours
  • High quality single layer HDPE
  • Excellent puncture and tear resistance
  • Provides an effective seal around service pipe penetrations
  • Part of the GX Geomembrane system providing protection against Hydrocarbons


  • Cut a circular hole in the Visqueen membrane as close as possible to the pipe. Bond the Visqueen Ultimate Top Hat Unit to both the pipe and the membrane with the Visqueen double-sided tape appropriate for the membrane specification.Seal the top hat laps to the pipe and membrane with the Visqueen single-sided tape appropriate for the membrane specification.Complete the installation by fixing the supplied jubilee clip around the top hat upstand.When used in conjunction with Visqueen Ultimate HC BLOK membrane, the skirt of the top hat unit can be heat welded to the membrane

Product Specification

  • Pipe Diameter: 110mm
  • Quantity: 460

Standards & Certification

  • Quality Management System ISO 9001-2015
  • Occupational Health and Safety System ISO 18001-2007
  • Environmental Management System ISO 14001-2015

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