DualProof – Pre-applied, fully bonded membrane

DualProof – Pre-applied, fully bonded membrane

Delta DualProof is a fully and permanently bonded, Pre-Applied, Type A  waterproofing membrane. DualProof is a continuous Type A waterproofing system for pre-application seals foundations, below ground surfaces of floors and walls and details of reinforced concrete earth retaining structures. Delta DualProof is applied before steel reinforcement is fixed and concrete poured.

The special non-woven PPFleece of DualProof is co-extruded with a highly flexible, water and gas resistant, transparent PVC layer. Freshly poured concrete forms a strong mechanical bond with the PP-Fleece, preventing water tracking between the membrane and the concrete once cured. DualProof can be installed without heat or open-flame, overlapped and sealed with butyl tape and special adhesive, CEM 805 for detailing. DualProof has excellent crack-bridging capabilities at locations where cracks occur within the concrete.

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Areas of use

DualProof can be applied horizontally as well as vertically and is used in all applications where structures require protection against groundwater and seepage.

Typically used in the following  constructions:

  • New build basements
  • Foundations
  • Tunnels
  • Garages
  • All other concrete constructions below ground

Advantages of DualProof

  • BDA Approved
  • Full and permanent mechanical and chemical bond with concrete structures
  • Type A, Pre-applied waterproofing protection
  • No lateral water migration between concrete and membrane
  • Fast and easy installation
  • High flexibility and crack-bridging capabilities
  • High watertightness
  • Good resistance to aggressive conditions
  • DualProof may be used in all applications, where reinforced concrete structures require protection against groundwater and contaminants
  • 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 and specially trained staff, overlapping can be easily secured with Delta Double-sided Tape and detailing around corners with CEM 805 adhesive
  • Prevents any lateral water migration between the waterproofing membrane and the structural concrete
  • Seals small cracks in the concrete
  • Can be used in saltwater conditions
  • CE marked and DIN certified
Product Details
Product Code:
DMS 480
Soft PVC membrane + PP non woven
Roll size:
1.08m x 20m
Behaviour in Fire:
Class E
  • BS 8102:2022, Code of practice for protection of below ground structures against water from the ground
  • NBS J40/130 – Flexible Sheet Tanking/waterproofing
Technical Drawings

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