duplas ap

Technical Data Sheet

DUPLAS AP is a high quality polymer-rich APP modified bituminous torch-on membrane with a reinforcement core of spun-bond woven polyester mat, used as a capping layer in waterproofing system.The DUPLAS range belongs to the plastoproof group of membranes produced using a special grade of bitumen modified with Virgin APP polymer. The polymer-rich mixture is used to saturate and coat both sides of the polyester mat to the required thickness of the membranes.

FEATURES AND BENEFITS

  • 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 wide range of reinforcements, thickness and surface finishes for use in variety of application.
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SPECIFICATION COMPLIANCE

DUPLAS AP membranes exceed the requirements of ASTM D6222, UEAtc and other relevant international standards.

QUALITY ASSURANCE AND WARRANTY

Duproof is an ISO 9001 Quality Assured company, and DUPLAS AP membranes carry a

material warranty against any manufacturing defects.

TYPE AND FINISH

Thickness(mm)3.0, 4.0, 5.0
Nominal weightKg / m23.5, 4.5, 5.5
Dimensions length  X width[m]10 X 1
CoatingAPP – modified bitumen
Carrier180 g/m²
Top surfaceAlkali proof Aluminum foil
Bottom surfacePrinted Polyethylene foil

To order specify finish, reinforcement and thickness e.g DUPLAS AP 200, 200g/m² polyester reinforcement and 4 mm thick sheet membrane with Alkali proof Aluminum Foil on the top.

USES

  • As a capping layer in waterproofing systems.
  • Where reflectivity is required.
  • As a base flashing over the parapet.

METHOD OF APPLICATION

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 joints.

PACKING AND STORAGE

DUPLAS AP membranes are supplied in rolls of 1X10M, shrink wrapped on pallets. Rolls must be kept upright on pallets under shade. DUPLAS AP pallets should not be stacked one over the other.

HEALTH AND SAFETY

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

TECHNICAL DATA

PROPERTYUNITTEST METHODVALUE
COMPOUND PROPERTIES
Softening point[° C]ASTM D 36 150
Penetration, @ 250CdmmASTM D 514 – 21
Heat resistance, 2 hrs. @1100C——-UEAtcNo flow
Flexibility at low temperature[° C]DIN 52123-2 to -5
Water absorption%ASTM 570< 0.4
MECHANICAL PROPERTIES
Type of carrierg/m2Spun bond Polyester mat
180
Tensile strength  (L/T)[N / 5 cm]UEAtc750/650
Elongation  (L/T)[%]UEAtc40/45
Tear resistance (L/T)NUEAtc200/225
Puncture resistance              Static

Dynamic

———UEAtcLStatic @ 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 clients requirements availability of raw materials or other conditions. This data sheet supercedes all previous publications pertaining to this product. All reasonable care has been taken in preparing this document which to the best 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 our control.

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