Duram Bituflex - Bituminous Waterproofing Membrane


Duram Bituflex is a water-based latex/bituminous waterproofing membrane formulated with elastomers and reinforcing agents. It features a brushable consistency and offers a high build for effective waterproofing. Bituflex is user-friendly, non-hazardous, and available in black colour. It does not re-emulsify after full cure. This product is designed as a highly economical solution for general-purpose waterproofing in non-exposed or non-critical applications.

Product Characteristics

  • Colour: Black
  • Sizes: 15 Litres


Bituflex is suitable for various construction substrates, including concrete, cement render, FC sheeting, compressed sheeting, block work, brick, masonry/stone, FC/CFC/asbestos/blue board sheeting, particle board (see notes below), bitumen (when primed with Duram Primeseal MC), timber, particle board, and plywood (when primed with Duram Primeseal MC). It can be used for podiums, retaining walls, planters, landscaped areas, and structural slabs.

Benefits and Advantages

  • Economical
  • Easy to apply
  • Excellent adhesion
  • Semi-flexible


  • Bituflex is designed for short to medium-term waterproofing and is not suitable for long-term solutions.
  • Not designed for exposure to the sun.
  • Requires full drying and curing to achieve waterproofing. Protect from rain until cured.
  • Not compatible with acid-based sealants. Coating with Duram Primeseal MC before applying sealant is recommended.
  • Not intended for trafficable use.


Coverage rate varies depending on the type, condition, porosity, texture of the surface, and application technique. The stated average coverage rate may vary accordingly. Minimum coverage is 1.7L/m² or 0.85L/m² per coat. A 15L pail covers approximately 18m² for one coat at 0.5mm DFT (Dry Film Thickness).

Drying and Curing

The drying and curing process of Bituflex is influenced by various factors, including surface type, dryness, porosity, temperature, humidity, ventilation, climate conditions, and application technique. The following are approximate drying times at 25ºC and 50% RH: Touch dry: 2 to 4 hours per coat, Set: 12 hours, Full cure: 24 hours per coat. Ensure the membrane is fully cured before tiling or applying a topcoat.

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Prices do not include GST

Duram Bituflex - Bituminous Waterproofing Membrane

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