2.5mm Combined Reinforced APP Bitumen
ARDEX WPM 120 (Shelterbit Fibrepol 120) is an A.P.P. (Atactic Polypropylene Plastomeric) type modified bitumen membrane consisting of a specially formulated bituminous compound of distilled asphalt modified with selected high grade visco-elastic polymers and reinforced with a combined reinforcement carrier.
ARDEX WPM 120 is coated with either a sanded or talc top surface finish while the bottom surface is embossed and protected by a heat sensitive polythene film. This type of finish for the lower surface has been chosen for two specific purposes.
1. To act as a temperature gauge during application. When the film melts it shows that the compound is at the correct temperature.
2. The embossing is to allow the gases to rapidly escape when heated to its correct installation temperature avoiding possible problems of bubbling and blistering.
FEATURES AND BENEFITS A.P.P. modified compound Excellent cold flexibility to -5?C Excellent elongation Heat welded laps provide homogenous joint Prefabricated membrane Good elastic memory Combined reinforcement carrier High mechanical characteristics High puncture resistance Will not decay USES ARDEX WPM 120 is used as a base and or mid layer in multi-layer tanking membrane systems in horizontal or vertical applications also for waterproofing balconies terraces and roofs. ARDEX WPM 120 membrane is a sandwich membrane and must be protected from UV.
The application of ARDEX WPM 120 should be carried
out by an accredited applicator.
Installation shall be strictly in accordance with the
Acceptable substrates to which ARDEX WPM 120
is installed must be properly prepared prior to
All surfaces must be dry clean smooth free of sharp
edges loose or foreign materials oil grease and other
materials which may damage the membrane.
Prior to the application of ARDEX WPM 120 the base
substrate surfaces should be primed with ARDEX WPM
240 (Shelterbit primer). Coverage of primer will depend
on the porosity of the substrate.
ARDEX WPM 120 is normally fully bonded to the
prepared substrate with side laps of 100mm and end
laps of 150mmm.
Overlaps shall be sealed by torch.
ARDEX WPM 120 may be used in various combinations to
produce a variety of specifications tailored to suit the
individual waterproofing need.
The exact specification will depend on functional and
economic requirements. Advice should be sought for
suitable specifications from ARDEX Australia Pty Ltd.
ARDEX WPM 120 is hazardous; non-dangerous goods.
However during installation exercise caution when working
with open flame. Examine all surfaces to which the flame
has been applied for smouldering or burning conditions.
Do not use open flame on or near highly combustible
materials. Follow all local fire codes.
All rolls of ARDEX WPM 120 should be stored in
a covered area protected against sunlight and UV
radiation. Rolls should be stored in a vertical position
on a smooth floor so as not to damage the edges.
Roll size: 1m x 15m
Roll weight: 43.5kg
Rolls per pallet: 23
The Technical Data shown below are the average results
of the Tests Measurements and Trials carried out on
ARDEX WPM 120 Waterproofing Membrane.
Characteristics Standard Units Nom.
Length UNI EN 1848-1 m 15
Width UNI EN 1848-1 m 1.0
Thickness UNI EN 1849-1 mm 2.5
Aeric Mass UNI EN 1849-1 kg/m² 2.9
Heat Stability UNI EN 1110 °C 110
Cold Flexibility UNI EN 1109 °C ?5
Tensile strength UNI EN 12311-1
Ultimate Longitudinal N/5cm 530
Ultimate Transverse N/5cm 400
Elongation at Break UNI EN 12311-1
Longitudinal % 35
Transverse % 40
Tear resistance UNI EN 12310-1
Longitudinal N 120
Transverse N 120
Reinforcement Combined g.s.m. 120
Surface finishes Lower¹ torch film
Note 1) Lower surface; the surface which is applied to
the structure being waterproofed.
Note 2) Top surface; exposed to underside of covering
All tests have been carried out to UEATC to tolerances
as per European Directive.