FEATURES AND BENEFITS
1-High heat resistance
2-Excellent rot and corrosion resistance with extremely high dimensional stability.
3-Excellent resistance against mechanical perforations and thermal shocks.
4-High chemical resistance: withstands effects of salts and other corrosive agents in soil and water.
5-Absolute impermeability to water
6-Versatile, available in wide ranges of finishes and thickness.
SPECIFICATION AND COMPLIANCE
DULAS G membranes conform and exceed the requirements of ASTM, UEAtc and other relevant international standards
QUALITY ASSURANCE & WARRANTY
Duproof is an ISO 9001 Quality Assured company, and DULAS G membranes carry a material warranty against any manufacturing defects.
TYPE AND FINISH
|Thickness||( mm )||3.0||4.0|
|Dimensions [length / width]||[m]||10 / 1|
|Coating||SBS – modified bitumen|
|Carrier||60 g/m² glass fiber mat|
|Top||Polymeric foil (F) or Sand (Q) or Slate (S)|
|Bottom||Printed Polyethylene foil|
To order specify finish, reinforcement and thickness e.g. DULAS FG 4 mm for foil finish, glass reinforcement and 4 mm thick sheet membrane.
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 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 use DUBOARD is recommended; on horizontal surfaces a minimum 25 mm thick sand-cement screed may be used.
Contact the technical department of your local distributor for advice.
PACKING AND STORAGE
DULAS G membranes are supplied in rolls of 1m X 10m; shrink wrapped on pallets. Rolls must be kept upright on pallets under shade.
HEALTH AND SAFETY
There are no direct health hazards associated with DULAS G 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 36||120|
|Penetration, @ 250C||dmm||ASTM D 5||25-35|
|Heat resistance, 2 hrs. @1000C||——||UEAtc||No flow|
|Flexibility at low temperature||[° C]||DIN 52123||-5 to -10|
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 beat 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 our control.