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  • Shalex Industries Membrane Clear Dampcourse

Membrane Dampcourse

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Shalex Membrane Dampcourse is a waterborne waterproofing membrane designed for use on a wide variety of substrates where movement is to be expected.

Unlike traditional waterproofing membranes such as bitumen and coloured acrylics, Membrane Dampcourse dries clear to provide a highly flexible barrier to water while not blocking out the substrate. As such it is suitable for use on a wide variety of masonry substrates such as face brickwork and natural stone where an expressed damp course barrier is required.

Membrane Dampcourse remains highly flexible under extreme elongation and under constant exposure to moisture and/or hydrostatic pressure.

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  • All surfaces should be clean, sound and free from dry or loose material. Check for presence of waxes, mould release or bond breaking agents, oils or other contaminants than may affect adhesion before application. Given the wide variety of substrates and site specific conditions, it is advisable to check adhesion prior to job commencement.
  • Moulds, lichen or fungal growth should be treated with a suitable algicide or if unavailable with a dilute bleach solution (1 part household bleach to 2 parts water) to kill any spores. Leave the bleach solution in contact with the surface for approx 10 minutes then liberally rinse with clean water and allow to completely dry.
  • Masonry should be flush pointed. Make good any defects in surfaces. Remove any dags, high points or protrusions prior to application. Any laitance in concrete surfaces should be removed with wire brush or by grit blasting.
  • All expansion and movement joints between differing substrates should be sealed with a suitable joint sealant.


membrane-no.1-2.png Porous surfaces should be primed with one coat Shalex’s Sealit Multipurpose prior to application of Membrane Dampcourse. Membrane Dampcourse may also be diluted 1 part Membrane Dampcourse to 5 parts clean water and used as an effective primer.

membrane-no.2.png Coat all areas liberally working the product into any voids or depressions.

membrane-no.3.png Where reinforcing fabric is to be used, apply first coat to the required area and while still wet embed the fabric ensuring no air is trapped. 

membrane-no.4.png Apply a second coat of membrane at right angles to the previous application.

membrane-no.5.png Allow to dry to clear before applying screeds, tiles, or any other coverings.


  • As a damp course barrier in masonry walls, fences, letterboxes and other structures

  • Retaining walls

  • Roofs, balconies and decks

  • Shower recesses & bathroom floors

  • Planter boxes

  • Ponds, water troughs and tanks

  • General wet areas


   Product Features

  • Class III Membrane complies with AS 4858

  • Highly flexible, accommodates movement and minor cracking

  • Dries to a clear, semi-transparent finish, and may be tinted to almost any colour or painted over with any acrylic based paint.


   Note: Membrane is dry when it forms a firm skin and becomes clear, but may remain tacky for longer periods.



   No. of Coats 1 - 2
   Coverage 1L = approx 2m² (Dependant on substrate)
   Drying Time: Recoat: 2 - 4 hours
Dry:     12 - 24 hours
   Fully Cured: 7 days
   Clean Up: When wet: Water
When dry: Solvent
   Shelf Life: 12 - 18 months
   Store Below: 35°C
   Application Temperature: 5°C - 35°C
   Application: Brush or Roller


Pail Sizes

5Ltr, 15Ltr


6.6kg, 19.8kg

Dangerous Goods Class



Customers are advised to consider the information in this data sheet in the context of how the product will be used, including surfaces and any other products used. The information provided in this data sheet represents our best scientific and practical knowledge. Any advice, information or assistance provided by Shalex in relation to its products is given in good faith, however is provided without liability or responsibility. Due to the wide variety of site conditions we are unable to assume liability for any loss that may arise from the use of our products. The user is responsible for checking the suitability of products for their intended use.




Membrane Dampcourse is a water based membrane and not classified as a dangerous good for transportation. We can ship this product to all areas via postal services and have express courier options for selected locations. Add this product to your cart and use the estimate shipping and tax feature to view shipping charges to your location.

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