Stopgap Isolator Membrane

Stopgap Isolator Membrane is an impervious laminated sheet onto which numerous sheet vinyl, linoleum and rubber floorcoverings can be bonded. Designed to be laid over damp surfaces, some existing resilient floorcoverings and also onto oil and paint contaminated subfloors. It is a loose-lay system that allows easy removal leaving the surface in its original condition. The sheet has nodules on the underside to create an airspace allowing ventilation of water vapour from a damp subfloor into a dry wall.

Stopgap Isolator Membrane must not be used on:

  • Subfloors that are subject to hydrostatic water pressure.
  • Areas that are subject to very heavy wheeled traffic, such as fork lift traffic or where indentation is likely to occur.
  • On ground floor timber bases that are not adequately ventilated.
  • On wood block floors at ground floor level.
  • Over magnesite.
  • On synthetic anhydrite screeds that have not fully dried.
  • Onto weak or friable subfloors.

General information

Uniclass 2015

Pr_25_57_51_66 Polymeric membranesPrimary


M50/110 Resilient floor tiling

M50/130 Carpet tiling

M50/15 Carpet tiling

M50/150 Sheeting

M50/155 PVC sheet flooring in special wet areas

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Specification data - Polymeric membranes

Product Reference

Stopgap Isolator Membrane


Not required

Styccobond F84 Isolator Membrane Adhesive

Styccobond F47 Pressure sensitive adhesive

Standard product features

Roll width:

2000 mm.


1.5 mm.

Product Options


In areas that are subject to surface water, use Styccobond F84 Isolator Membrane Adhesive - a solvent-free, two-part adhesive. When cured it is resistant to water, oil and grease.

Styccobond F47 solvent-free acrylic polymer emulsion adhesive is suitable for securing sheet vinyl floorcoverings onto Stopgap Isolator membrane where the relative humidity of the subfloor does not exceed 92%.

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