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A black waterproof membrane that has been formulated to act as a damp-proof membrane behind retaining walls and buried structures. Suitable for concrete, concrete block and brick-work, wood and metal.

Building Code Provisions
  • Passed the vapour flow resistance level requirements for a water vapour barrier as per E2/AS1 BRANZ Report number DC2547.

  • Meets moisture vapour permeability requirements of NZS 3604:2011.

Key Benefits
  • Simple to apply by brush or roller

  • Compatible with green concrete

  • Excellent adhesion to masonry and concrete etc.

  • Fast cure time

  • Low water permeability

  • Sulphates and ground salts resistant

Technical Data

: Thyrotropic liquid mixed
Solid content: 60%
Density: 1.00kg/L
Application temperature: 5°C to 50°C
Drying Time: 4 – 6 hours at 20°C, 12 – 24 hours should be left between coatings
Coverage: Additional to the primer coat – The minimum total application rate is 1 Liter per m2 (2 coats of 1/2 litre per m2 each). Depending on the substrate quantities this might vary slightly.
Limitations: Not to be exposed to sunlight.
Shelf life: 12 months when stored in original packaging.
between 1°C –  35°C


SKUs List
Hydro Bituminous Surface Treatment 4L

4 Litre

Hydro Bituminous Surface Treatment 20L

20 Litre

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