Purtop System Tank

Purtop
System Tank
SPRAY-APPLIED WATERPROOFING SYSTEM MADE FROM PURE POLYUREA
FOR STORAGE TANKS, BASINS AND HYDRAULIC STRUCTURES IN GENERAL
PRODUCTS USED FOR THE SYSTEM:
Purtop 1000 - Triblock P - Primer EP Rustop - Primer M
DESCRIPTION AND
AREAS OF USE
PURTOP SYSTEM TANK is a
waterproofing system based on
PURTOP 1000 two-component,
solvent-free, pure polyurea
membrane. Due to the high
tear strength, exceptional
elasticity and chemical resistance
of the membrane, the system
is suitable for use on numerous
types of hydraulic structures
(storage tanks, depuration
basins, canals, dams, piping
systems, …).
PERFORMANCE AND
ADVANTAGES
• Due to the capacity of
PURTOP 1000 to bond to
various types of substrate,
it may be used to repair the
waterproofing layer on various
types and forms of storage
tanks and hydraulic structures.
• Rapid installation due to the
immediate waterproofing
capacity and set to foot traffic
of PURTOP 1000.
• System suitable for application
on any type of structure, due to
the high mechanical strength
and dynamic crack-bridging
capacity of PURTOP 1000.
• The excellent chemical
resistance of PURTOP 1000
memebrane makes it suitable
for contact with highly
aggressive chemicals agents.
SUBSTRATE
1. CONCRETE
Check the substrate to ensure
it is suitable for applying the
waterproofing system. Prepare
the surface by high pressure
hydro-cleaning or sandblasting.
Remove all dust and any loose
Examples of hydraulic structures waterproofed with Purtop System Tank
Purtop
System Tank
parts from the substrate to leave
a dry, porous, slightly rough
surface with no contaminants.
Repair any hollows, cavities or
detached areas in the substrate
using a suitable product from the
MAPEGROUT range.
After preparing the surface,
apply one or two coats of
TRIBLOCK P three-component,
epoxy-cementitious primer
with a trowel or roller, depending
on the condition of the
substrate.
Depending on the surrounding
climatic conditions, this primer
must be cured for up to 7 days.
The curing time may be reduced
by covering the primer 48 hours
after application with a coat
of MAPECOAT I 600 W,
two-component epoxy primer
in water dispersion.
When there are metal elements in
the concrete substrate, carry out
the following treatment. Check
the state of the substrate and dry
sand-blast the surface to grade
SA 2½ according to Swedish
Standards. If it is not possible
to dry sand-blast the substrate,
prepare the surface using an
alternative method, such as a
scrubbing-action or percussionaction cleaning machine. After
treating the metallic surfaces, apply
a coat of PRIMER EP RUSTOP
two-component, epoxy primer with
a brush, roller or airless spray.
If there are through elements,
discontinuous areas or areas
which are critical for the watertightness of the tank or hydraulic
structure, contact the MAPEI
Technical Services Department
to define the most appropriate
procedure to prepare the
substrate.
MEMBRANE APPLICATION
PURTOP 1000
Apply PURTOP 1000 at a
temperature of between +5°C
and +40°C.
Before applying the PURTOP
1000, remove all traces of
dust from the surface with an
industrial vacuum cleaner. The
temperature of the substrate
must be at least 3°C higher than
the dew-point temperature and
the level of relative humidity must
be no higher than 4%.
To apply the PURTOP 1000
membrane, use a high-pressure,
bi-mixer industrial spray gun with
flow and temperature control,
fitted with a self-cleaning spray
gun.
Apply PURTOP 1000 in a
continuous layer over all the walls
of the storage tank or hydraulic
structure being treated.
If application of PURTOP 1000
is interrupted and then taken up
again after the maximum covering
time (2 hours), an overlap at least
30 cm wide must be made after
applying a coat of PRIMER M.
NOTES
For further information on the
products which make up the
system, please refer to the
relative Technical Data Sheet for
each product. Recommendations
regarding safe use and handling
of the products are contained in
the Safety Data Sheet for each
single material in the cycle.
If the system is applied on
different surfaces to those
mentioned above, or in climatic
conditions and/or for final uses
not mentioned in the Technical
Data Sheet for the system,
please contact the MAPEI
Technical Services Department.
PURTOP 1000
APPLICATION DATA (A+B)
A/B ratio (in weight):
100/103
A/B ratio (in volume):
100/100
Gel time at +70°C (seconds):
<4
Application temperature range (°C):
65-85
Application pressure (bar):
160-200
Surrounding temperature for application (°C):
from +5°C to +40°C
MECHANICAL CHARACTERISTICS (after 7 days at +23°C)
Tensile strength (DIN 53504) (N/mm²):
25
Elongation at failure (DIN 53504) (%):
350
Tear strength (ISO 34-1) (N/mm):
96
Shore A hardness (DIN 53505):
90
Glass transition temperature (°C):
-46
CONSUMPTION [kg/m²]
Min/Max COVERING TIMES [hours]
(for a temperature between +15°C and +25°C)
Triblock P
0.25-0.50
2-7 days
Primer EP Rustop
approx. 0.20
6-24
2.0 (for 2 mm thick layer)
30 min-2
PRODUCT
Primer
Membrane
Purtop 1000
YIELD
The consumption figures indicated above are for a cycle applied at a temperature between +15°C and +25°C
on a surface treated as indicated in this Technical Data Sheet. Rougher surfaces and lower temperatures lead
to higher consumption rates.
membrane
Purtop 1000
primer
Triblock P
concrete structure
6112-10-2012 (GB)
www.mapei.com
C.P. MK 200830