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Delta DualProof - Pre Applied Waterproofing Membrane

Verified by manufacturer 10 days ago

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Delta Membrane Systems Ltd Variant:

Type A external (positive side) pre-applied waterproofing membrane.

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Can be used in saltwater conditions.

Damp-proofing against:

  • Rising humidity caused by capillary action.
  • Standing water, for slab-on-ground foundations, column footings, strip foundations and walls.
  • Diffusion, effusion, absorption.

Concrete protection against:

  • Various ground gases.
  • Chemicals such as (sulfate, chloride, carbonate, hydrogen carbonate etc).
  • Contaminated ground water.

Waterproofing resistance:

  • Water under hydrostatic pressure.
  • Lateral water migration for deep, one or multilevel below grade structures.
  • Approved to German standard DIN 18195 ‘pressurized water situations’.
  • An additional sealing membrane for all watertight concrete structures.


DualProof is a fully and permanently bonded, self-adhesive, composite sheet which does not only waterproof but protects against gas and chemicals. It consists of a sealed two layer highly flexible PVC membrane laminated with a non-woven polypropylene fleece.

DualProof is cold/ pre-applied, and is installed without heat or open-flame. It is applied before the steel reinforcement is fixed and the concrete poured.

Features and benefits:

  • Waterproof, gas proof and gives concrete protection against chemicals such as sulfate, chloride, carbonate, hydrogen carbonate etc.
  • Tough and resistant, quick and easy to install, high compound shear strength.
  • Can be installed in every season regardless of temperature and weather condition.
  • No need for complicated welding equipment or specially trained staff, overlapping can be easily secured with CEM 805 adhesive.
  • Self-adhesive bonding properties on contact with poured concrete.
  • Seals small cracks in the concrete.
  • CE marked and DIN certified.

General information







20000 mm


1080 mm

Warranty description

Ten year


Pr_25_57_65_60 Plastics sheetsPrimary


J40/297 Waterproofing/ damp-proofing/ gas-retardant membrane

Specification data - Plastics sheets




Protection layer.

Performance characteristics


Tensile strength (minimum)

1254 N/50 mm.

Maximum tensile (to DIN EN ISO 12311-2).

Tear resistance

641 N/50 mm.

Tear Resistance (nail shank, to DIN EN 12310-1).

Elongation to break


Fire performance

To DIN EN ISO 11925-2 and EN 13501-1, class E.

Third-party certification

CE marked and DIN certified.



Physical properties


Weight (minimum)

1470 g/m².

To DIN EN 1849-2.



Thickness (minimum)

1.7 mm.

Thickness (20 kPa , to DIN EN 1849-2): (± 0.5).

1.2 mm.

Thickness PVC membrane (to DIN EN 1849-2).


To DIN EN 1928 B: Watertight.



  • Resistance to impact (to DIN EN 12691): Watertight.
  • Shear resistance in the overlapping (to DIN EN 12317-2): Collapse outside of the overlapping ≥300.


Sustainability data

Contains Red List materials


Country of product manufacture




Recycled content

0 %

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