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Emer Proof Undertile

Fibre enhanced single component water based SBR hybrid polyurethane membrane.

Emer-Proof Undertile is a fibre-enhanced, single-component, water-based polyurethane membrane designed for a range of waterproofing applications where the membrane is to be covered over with tiles, screeds, concrete beds, etc.

Based on a SBR hybrid polyurethane compound, EmerProof Undertile provides a user friendly single component membrane that achieves good film build, with reinforced and elastomeric properties once the membrane has dried.

Emer-Proof Undertile offers excellent adhesion properties over primed building substrates, including Scyon sheeting, CFC, wet area timber, ceramic tile, metals, plastics, concrete, masonry, renders, cement sheeting, wet area sheet surfaces, and plasterboard surfaces (once correctly primed and prepared).

It possesses excellent low water vapour transmission properties and fully compatible with polymer modified cement based tiles adhesives, screeds and renders.

Emer-Proof Undertile is ideally suited as a general purpose under tile wet area membrane.


  • Wet areas and shower alcoves
  • Under tile balcony areas
  • Under tile terrace areas
  • Sandwich seal between existing and new substrates, e.g. old to new concrete; cement screeds over concrete and CFC surfaces


  • Low VOC (0.085 grams per litre)
  • Australian Made
  • Solvent-free, non-hazardous
  • Elastomeric and flexible with good tensile strength properties
  • Once cured, it will not re-emulsify handles permanently wet conditions
  • Outstanding low water vapour transmission properties
  • Excellent chemical resistance
  • Excellent adhesion to primed surfaces
  • Compatible bonding properties for tile adhesives, screeds and renders

Standards Compliance

Emer-Proof Undertile meets the requirements of:

  • AS/NZS 4858:2004 Wet Area Membrane as a Class III membrane
  • AS3740:2010 Waterproofing of Wet Areas Within Residential Buildings

Technical Support

Parchem offers a comprehensive range of high-performance, high-quality waterproofing and construction products. In addition, Parchem offers specifiers, contractors, and end-users a technical support package and on-site technical assistance.

Product specification sheet

product sheet pdfEmer Proof Undertile product specification sheet opens in a new window


Parchem Construction Supplies

Parchem Construction Supplies logo
Parchem Construction Supplies Pty Ltd is part of the Alesco Group and operates within the ‘Construction and Mining Division’. Alesco is a publicly listed industrial brands company who supply a diverse range of specialist industrial products in Australia and New
  • Australasian Corrosion Association
  • Association for Materials Protection and Performance
  • Illawarra Innovative Industry Network
  • NACE International
  • The Society of Protective Coatings