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Application

Suitable for the following applications:

  • Waterproofing applications to BS 8102:2009 type A.
  • Slab edges and permanent shutter work.
  • Tanking below ground structure e.g. lift pits.
  • VOC/ hydrocarbon contaminated sites in accordance with CIRIA C748.
  • Carbon dioxide and methane sites in accordance with BS 8485:2015.

The membrane can withstand normal on-site foot traffic and the activities associated with the laying of a reinforced concrete slab without the need for additional membrane protection. In addition, when applied with welded joints the membrane can provide protection against hydrostatic water pressure.

Description

Visqueen Ultimate GeoSeal is a pre-applied membrane designed to comply with current guidance on waterproofing, Volatile Organic Compounds (VOCs) and ground gases.

Manufactured using Visqueen’s advanced barrier technology and is suitable in applications which are affected by aggressive chemicals such as Benzene, Toluene, Ethyl Benzene and Xylene (BTEX). The product is textured on one side to aid adhesion to concrete and available in a large roll format to minimize jointing and for quick installation. The membrane is grey and black and 2440 x 41 000 x 1 mm (100 m²), in single wound roll format.

Features and benefits:

  • Conforms in full to BS 8102:2009, CIRIA C748 and BS 8485:2015. CE marked (EN 13967).
  • Unique pre-applied and gas resistant membrane.
  • Excellent VOC and methane barrier resistance.
  • Suitable for both tanking and DPM applications.
  • Exceptional puncture resistance, no protection required.
  • Welding and Visqueen Gas Resistant tape system options.

System components:

  • Visqueen GX double-sided bonding tape.
  • Visqueen gas resistant lap tape.
  • Visqueen retaining discs and nails.
  • Visqueen GX top hat units.
  • Visqueen detailing strip.

Applications:

Suitable for the following applications:

  • Waterproofing applications to BS 8102:2009 type A.
  • Slab edges and permanent shutter work.
  • Tanking below ground structure e.g. lift pits.
  • VOC/ hydrocarbon contaminated sites in accordance with CIRIA C748.
  • Carbon dioxide and methane sites in accordance with BS 8485:2015.

The membrane can withstand normal on-site foot traffic and the activities associated with the laying of a reinforced concrete slab without the need for additional membrane protection. In addition, when applied with welded joints the membrane can provide protection against hydrostatic water pressure.

Waterproofing:

  • When a combined waterproofing system is required Visqueen recommend a suitable drainage system should be designed and incorporated. Visqueen Cavity Drain System provides a type C internal protection and is available separately, consult manufacturer for details.
  • When using GeoSeal in an external waterproofing application hydrostatic pressure can be relieved by using Visqueen Protect&Drain, available separately. The design and installation should be in accordance with BS 8102:2009.

General information
Specification data
Product Reference

Visqueen Ultimate GeoSeal

Standard product features

Technical characteristics:

  • Colour: Grey/ black.
  • Size (l x w) EN 1848-2: 41 x 2.44 m.
  • Thickness EN 1848-2: 1 mm.
  • Methane permeability ISO 15105-1: <40 ml/ m²/ day/ atm (Pass).
  • Puncture resistance BS EN ISO 12236: >2500 N.
  • Impact resistance Method A hard surface EN 12691: 750 mm.
  • Impact resistance Method B soft surface EN 12691: >2000 mm.
  • Tensile yield strength MD ASTM D4885-01: 11.9 kN/m.
  • Tensile yield strength CD ASTM D4885-01: 12.7 kN/m.
  • Elongation at break MD ASTM D4885-01: >500%.
  • Elongation at break CD ASTM D4885-01: >501%.
  • Tear resistance - trouser method A - MD BS ISO 34-1: 79.6 kN/m.
  • Tear resistance - trouser method A - CD BS ISO 34-1: 75.8 kN/m.
  • Tear resistance - angle method B - MD BS ISO 34-1: 128.3 N.
  • Tear resistance - angle method B - CD BS ISO 34-1: 126.9 N.
  • Tensile strength - MD EN 12311: 29 N/mm².
  • Tensile strength - CD EN 12311: 27 N/mm².
  • Tensile elongation - MD EN 12311: 864%.
  • Tensile elongation - CD EN 12311: 869%.
  • Joint strength EN 12317-2: 450 N.
  • Water tightness (60 kPa) EN 1928: Pass.
  • Resistance to impact EN 12691: 900 mm.
  • Low temperature flexibility EN 1109: Pass -15°C.
  • Durability against heat ageing EN 1296: Pass.
  • Durability - chemical resistance EN 1847: Pass.
  • Resistance to tearing (nail shank) CD EN 12310-1: 445 N.
  • Resistance to tearing (nail shank) MD EN 12310-1: 470 N.
  • Resistance to static loading EN 12730: Pass at 20 kg.
  • Water vapour transmission - resistance EN 1931: 2385 MNs/g.
  • Water vapour transmission - permeability EN 1931: 0.05 g/m²/d.

C748 Permeation vapour tests (ISO 15105-2), 100% concentration (<1 ml/ m²/ day):

  • Benzene.
  • Toluene.
  • Ethyl benzene.
  • (m,p, and o) xyxlenes.
  • Hexane.
  • Vinyl chloride.
  • Tetrachlororthene.
  • Trichloroethene.
  • Naphthalene.

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