Proofex GPE
constructive solutions
Cold applied polymer modified bitumen
waterproofing sheet membrane
Uses
Tensile Tear Strength
To provide a vapour-proof and waterproof membrane for
Longitudinal:
Transverse:
(ASTM D 4073)
Peel Strength
115 N/mm
110 N/mm
To Primed Concrete
To Self
To Metal
(ASTM D 1000)
Resistance To Hydrostatic
Pressure
(DIN 1048)
Puncture Resistance
(ASTM E 154, UEAtc)
Softening Point
(ASTM D 36)
Penetration At 25oC
(ASTM D 5)
Flexibility At Low Temperature
(ASTM D 146, UEAtc)
Water Absorption
(ASTM D 570)
Chemical Resistance
(ASTM D 543)
2.0 N/mm
2.1 N/mm
5.7 N/mm
building
and
civil
engineering
structures.
Typical
applications include basements, ground slabs, roofs,
foundations, lift pits and subways.
Advantages
Waterproof and vapour proof
Cold applied
1.5 mm nominal uniform thickness
Good adhesion to primed concrete surfaces
Excellent adhesion to concrete substrates
Description
Proofex GPE is a cold applied, self adhesive sheet
waterproofing membrane consisting of a polymer modified
bituminous compound and a polyethylene surface film to
assist in handling. The adhesive surface is protected by a
66 PSI (47 m)
245 N/60 mm
Not Perforated At 25kg
100oC Min
80 110 dmm
-15oC No Cracking
0.12%
Conforms
Technical Support
release paper which is removed before application.
Fosroc offers a comprehensive range of high performance
Properties
Reinforcement:
(UEAtc)
high quality, construction products. In addition to a wide
60 g/m2 Reinforced
Fibre Glass Fleece
Tensile Strength or Reinforcement
range of quality products, Fosroc offers a technical support
package to specifiers and contractors which includes
assistance with product selection and technical advice from
Longitudinal:
Transverse:
(ASTM D 412)
Elongation or Rubber Modified
Bitumen Compound
(ASTM D 412)
Lap Joint Tensile Strength
20 N/mm
13 N/mm2
staff with unrivalled experience in the industry.
>2000%
The Proofex GPE membrane should be protected using
Longitudinal:
Transverse:
(UEAtc)
Tear Resistance
>250 N/5 cm
>175 N/5 cm
Longitudinal:
Transverse:
(ASTM D 1004)
35 N
45 N
Design criteria
Proofex Protection Board or a sand/cement screed for
horizontal applications prior to further construction. Proofex
Protection Board should be spot bonded to the Proofex
GPE using Plastiseal.
As an enhanced drainage protection board, Proofex Sheet
drain can be bonded to Proofex GPE membranes using
Plastiseal.
Proofex Primer may be omitted where Proofex GPE is to be
used as DPM to a horizontal slab beneath Proofex
Protection
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Board
or
sand/cement
screed.
All
Proofex GPE
internal/external angles should be reinforced with a 300 mm
Primer may be omitted where Proofex GPE is to be used on
wide strips of Proofex GPE membrane. Where practicable a
horizontal slabs as a damp proof membrane beneath a
25 mm chamfer should be provided to all external angles
protective screed.
prior to the application of the reinforcement strip.
Angles and corners, cement/sand mortar strips should be
Maintenance
used at all wall to floor junctions. The Cement/Sand Mortar
There are no special requirements; however any damage
should be repaired by exposing the damaged area, cleaning
the surface and applying a patch of Proofex GPE over the
should be fixed using 6 mm beads of Fosroc Plastiseal
applied to the vertical and horizontal faces approximately 30
mm away from the junction.
damaged area extending 300 mm past the edge of the
Internal and external corners should incorporate Fosroc
damage.
Proofex corner pieces which should be fixed using Fosroc
Specification clauses
Plastiseal as an adhesive.
All internal and external angles should be reinforced with a
Supplier specification
300 mm wide strip of Proofex GPE. Where possible a 25
Waterproof membrane, where shown on the drawing shall
mm x 25 mm chamfer should be provided to external
be Proofex GPE, self-adhesive membrane obtained from
angles.
Fosroc Ltd. Proofex GPE shall be applied in accordance
with the current technical data sheet.
Vertical Application
Proofex GPE should be applied to ensure that all end laps
Performance specification
are weathered
The waterproofing membrane shall be a 1.5mm thick self
adhesive sheet membrane comprising of a polymer
modified bitumen layer internally reinforced with fibreglass
Cut Proofex GPE to length allowing an extra 150 mm for
each end lap.
fleece, bonded on to an outer surface of polyethylene film.
Starting at the top of the wall, offer up the Proofex GPE to
The polymer modified bitumen shall have an elongation in
the tack coated surface. Remove the release paper from the
excess of 2000% when tested in accordance with ASTM
start of the roll. Progressively peel back the release paper
D412.
and press the membrane firmly into position working from
Application Instructions
the centre outwards to expel all trapped air.
To obtain a weathered lap it may be necessary to retain the
Surface preparation
last 500 mm of release paper on the roll. Only when the
All concrete surfaces must be wood float or shutter finished,
next drop or corner detail is being completed, remove this
free from cavities and projections. All damaged concrete
remaining piece of release paper and smooth down onto the
should be made good. Brick and block surfaces shall be
underlying Proofex GPE. The next roll or length should be
made sound and all mortar joints flush pointed. Rough brick
aligned against the previously applied piece allowing for the
or open textured blocks shall be made smooth with a
75 mm (or as specified) edge lap and 150 mm end lap. The
sand/cement render. All surfaces must be clean, dry and
selvedge release film should be removed immediately prior
free from dirt, frost, mould release agents and curing
to the lap being made.
compounds.
Vertical areas should be protected with Proofex Protection
Priming
Board or block work as soon as possible after application.
Apply Fosroc Proofex Primer by brush. Ensure complete
The backfill should take place immediately after the
coverage and allow to dry. Very porous brick, block and
membrane and protection have been installed.
rendered surfaces may require extra coats of Fosroc
Horizontal application
Proofex Primer. Only prime an area to which the Proofex
GPE can be applied the same day. Note: Fosroc Proofex
Unroll the complete roll of Proofex GPE and align edge with
Page 2
Proofex GPE
a chalk line.
Load at one end and half way along the membrane to
GPE should be lapped onto the edges of a suitable DPC
maintain alignment. Roll up the other half working back
towards the midpoint.
material.
Proofex GPE should not be used in situations subject to fuel
Carefully make a cut across the release paper only of the
rolled up Proofex GPE. Take care not to cut through the
or oil spillage or in soils heavily contaminated with fuel oils
or solvents
membrane.
Estimating
Ease the release paper away from the bitumen compound
Supply
and start to unwind the roll by a steady pull on the release
paper.
Proofex GPE
Thickness
1.5mm
As the roll unwinds, press the Proofex GPE firmly onto the
Roll width
1m
surface using a broom, working from the centre outwards to
Roll length
15m
expel all trapped air.
Roll weight
24 kg
Repeat this process with the second half of the roll. The
Edge laps
75mm
next roll or length should be aligned against the previously
Storage
applied piece allowing for the 75 mm (or as specified) edge
lap and 150 mm end lap. All edges and laps should be
Proofex GPE has a shelf in excess of 12 months
rolled to ensure proper contact and bond of the laps. All
Store vertically in cool, dry conditions.
overlaps on vertical and slopping surfaces must be
Precautions
weathered.
Damaged areas of Proofex GPE must be repaired with a
Health and Safety
minimum 300 mm x 300 mm patch to ensure that there is at
Proofex GPE Membrane: There are no known health
least 150 mm overlap of Proofex GPE all around the
hazards associated with Proofex GPE in normal use.
damaged area. If work is continued from one day to the
next, all exposed edges must be sealed by rolling to prevent
water penetration.
Proofex Primer: Flammable. Keep away from sources of
ignition. No smoking. Harmful by inhalation, in contact with
skin and if swallowed.
All horizontal areas of Proofex GPE should be protected as
soon as possible after application with Proofex Protection
Board or a sand/cement screed.
Avoid contact with skin and eyes and inhalation of vapour.
Wear suitable protective clothing, gloves and eye/face
protection. Use only in well ventilated areas.
Limitations
Fire
Proofex GPE is not a load bearing DPC material. Where
membrane continuity is required through a wall, Proofex
Proofex GPE and Protection Board are flammable. Keep
away from sources of ignition. Do not smoke in the
presence of these products. Proofex Primer contains volatile
flammable solvents. Use only in ventilated areas, well away
from any ignition source.
Important note
Fosroc Sdn. Bhd.
No 8 Jalan Trompet, 33/8
Seksyen 33, 40400 Shah Alam
Selangor, Malaysia.
Branch Office:
29, Jalan Zainal Abidin,
10400 Penang, Malaysia.
www.fosroc.com
Fosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard Conditions for the
Supply of Goods and Services, copies of which may be obtained on request. Whilst Fosroc endeavours to ensure that any advice,
recommendation, specification of information it may give is accurate and correct, it cannot, because it has no direct or continuous control
over where or how its products are applied, accept any liability either directly or indirectly arising from the use of its products, whether or
not in accordance with any advice, specification, recommendation of information given by it.
telephone:
+60 3 5191 5660
fax:
+60 3 5191 6960
+60 4 2287 464
+60 4 2292 661
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email:
malaysia@fosroc.com
MAL/0909/07/B
