duplas pg

Technical Data Sheet

DUPLAS PG is a high performance superior waterproofing membrane with double reinforcement, a tough non- woven Spun bond polyester and Glass fiber. It is specially designed to have superior properties and functionalities of both Polyester and Glass fiber reinforcement for wide range of construction applications. The Plastomeric nature of the synthetically modified coating is designed as a homogeneous mixture of a special bitumen and high quality Virgin APP polymer, which ensures high product quality and outstanding performance with excellent flexibility in cold climatic conditions. The top surface of the membrane is laminated with special polymeric foil or Sand or Slate, which protects the membrane from the weathering, and the bottom surface covered by a polyethylene foil.


  • High mechanical properties: good movement accommodation; resistant to tear and puncture
  • High resistance to hydraulic pressure: provides an impermeable and low absorption layer.
  • High temperature tolerance: stable in tropical climates; resistant to thermal ageing and shock.
  • High chemical resistance: withstands effects of salts and other corrosive agents in soil and water
  • Versatile: available with a range of reinforcements, thickness and surface finishes for use in variety of applications.
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DUPLAS PG membranes conform and exceed the requirements of ASTM D6164, UEAtc and other relevant International Standards.


Duproof is an ISO 9001 Quality Assured Company, and DUPLAS PG membranes carry a material warranty against any manufacturing defects.


Nominal weightKg / m24.55.5
Dimensions [Length X width][m]10 X 1
CoatingAPP – modified bitumen
Type of carrierComposite of 180/200/250 g/m² spun bond polyester mat and 50/60 g/m² glass fiber
TopPolymeric foil (F) or Sand (Q) or Slate (S)
BottomPrinted Polyethylene foil

To order specify finish, reinforcement and thickness e.g. DUPLAS FPG-260 for foil finish, 200g/m² polyester and 60g/m² glass reinforcement and 4 mm thick sheet membrane.


  • In the construction of single layer waterproofing system of flat roofs and pitched roofs and in infrastructure applications.
  • As a loose laid membrane over slip-sheet with side and end laps torched or hot air welded.
  • In regions where deformations stress from roof structures are expected and are used in underground reservoirs, tunnels and engineering constructions.
  • Ideal for new and re-roofing projects, waterproofing on steel decks and wood support decks.


Surfaces onto which the membrane is to be applied must be sound, clean and dry. Dust, loose material and protrusions must be removed and cracks, holes etc made good.

Priming: Apply one coat of DUPRIME solvent-based bituminous primer to all surfaces at 5-6 m²/lit and allow to dry. Primed surfaces must be covered within the same day. If left exposed for longer periods, clean and re-prime before applying the membrane.

Membrane Application: Position the rolls carefully with the correct orientation before the torching operation begin. Heat the lower surface of the rolls with a propane gas torch and unroll as the bitumen begins to melt. Maintain minimum 100 mm side laps and 150 mm end laps between rolls, staggering the joints where possible. All seams must be heat sealed from the top to ensure watertight laps.

Protection: Once laid, it is recommended to protect the membrane from long-term exposure, construction abuse and backfill, preferably within 24 hours. On vertical areas DUBOARD are recommended; on horizontal surfaces a minimum 25 mm thick sand-cement screed may be used. DUPLAS PG membranes are also suitable for partially bonded or loose laid installation.

Contact the technical department of your local distributor for advice.


DUPLAS PG membranes are supplied in rolls of 1m X 10m; shrink wrapped on pallets. Rolls must be kept upright on pallets under shade. Pallets should not be stacked one over the other.


There are no direct health hazards associated with DUPLAS PG membranes. Normal precautions for hot and volatile substances should be observed during application. Refer to our MSDS sheets for advice.


Softening point[° C]ASTM D 36150 max
Penetration, @ 250CdmmASTM D 514-21
Heat resistance, 2 hrs. @1000CUEAtcNo flow
Flexibility at low temperature[° C]DIN 52123-2 to -5
Water absorption%ASTM 570<0.4
Type of carrierg/m2Spun bond Polyester mat +Glass
Tensile strength  (L/T)[N / 5 cm]UEAtc750/650900 / 7001050 / 850
Elongation  (L/T)[%]UEAtc40/4545/5050/55
Tear resistance (L/T)NUEAtc220/235230/245250/265
Puncture resistance          Static





                          LStatic @ 25 Kg

I3 Dynamic @ 9 Joules

Note: These data are correct at the time of printing but may be changed without any prior notice subject to client’s requirements availability of raw materials or other conditions. This data sheet supersedes all previous publications pertaining to this product. All reasonable care has been taken in preparing this document, which to the best of our knowledge is accurate and true. Recommendations and suggestions are made in good faith and should only be considered for general guidance. No liability is assumed or taken by us in relation to the application, as usage conditions and any labor involved are beyond.

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