floor 620 PMB
FLOORING
Formerly "Floortop.620 PMB"
Polymer modified hydraulic binder
PRODUCT
floor 620 PMB is a proprietary polymer modified
hydraulic binder which when mixed with sand will give a
rapid drying, shrinkage controlled semi-dry floor screed. The
resulting screed is ideal for use in all instances in place of
traditional semidry screed, i.e. unbonded, bonded or floating
constructions; standard or heated screeds.
floor 620 PMB improves the quality, strength and
drying speed of the screed over standard cement screeds.
SCOPE OF USE
Particularly recommended for floor screed with pedestrian
traffic: hotel, housing…
CHARACTERISTICS
Form
Colour
Cleaning
Mix proportions
Working time
Application temperature
Bed thickness
Time to traffic
Compressive strength 1 day
Compressive strength 7 days
Compressive strength 28 days
Flexural strength at 28 days
Shrinkage 28 days
Powder
Grey
Clean tools, equipment
etc. using warm water
Mix 20 kg Binder with
approx. 160 kg sand (dry
weight) and 10-12L water.
60 minutes @ 20°C
+5°C to +35°C
Bonded >25mm
Unbonded >50mm
Floating >65mm
Light foot traffic after
12 hrs
8 MPa
22 MPa
31 MPa
6 MPa
< 0.5 mm/m
INSTRUCTIONS FOR USE
SUBSTRATE PREPARATION
When used on ground floors or floors subject to rising damp,
a suitable damp proof membrane or vapour barrier must be
present. When used in bonded construction, the substrate
should be clean and free from all dust and contamination.
The substrate must also be sound and coarse textured,
ideally mechanically prepared e.g. needle guns, bast
cleaning. When used in bonded construction, a slurry coat of
ad 225 MB and cement should be used as the bonding
agent.
PRODUCT PREPARATION
Mix using a drill and paddle, a normal concrete mixer, a
1/2 Technical data sheet . Edition: 09.16-A
PACKAGING
Leb
Syria
Jordan
UAE
Qatar
Kuwait
KSA
Oman
20 kg
20 kg
20 kg
20 kg
20 kg
20 kg
20 kg
20 kg
screw mixer or drum mixer. Do not mix by hand. Always use
good quality well graded sand 0 to 5 mm.
SITE MIXING:
20 kg floor 620 PMB
160 kg sand (Dry weight)
11 Liters of water
Add floor 620 PMB to sand and add sufficient water to
produce an earth dry mix with no bleed.
Always use the minimum amount of water to produce a
suitable mix. The amount of added water will vary considerably
depending on sand moisture content and grading. If the sand
is damp it may be necessary to add no additional water to
create a suitable mix.
Only mix the amount of material that can be placed within
one hour.
Apply screed to floor, level and fully compact to form a
dense smooth finish.
The screed must be protected from draughts within the first
12 hours, if necessary doorways and windows should be
taped up with polythene.
Subsequently, ensure the room has sufficient ventilation to
allow the screed to dry out.
floor 620 PMB will accept foot traffic after 12 - 24 hours
depending on site conditions. Floor coverings can generally
be installed after 4 days depending on thickness of screed
and site conditions.
www.sodamco-weber.com
floor 620 PMB
FLOORING
Ideal application temperature is between +5ºC and + 35ºC. If
the application temperature is higher than 35 ºC, make sure
to use cool water.
DRYING TIME
Always measure moisture content of the screed before
installing sensitive floor finishes. It is recommended that
screed moisture contents are measured using a Carbide
Hygrometer.
CONSUMPTION
22 kg/m² /cm thickness of mixed material.
STORAGE
12 months after manufacturing date in original and non-open
packaging , under cover, in dry condition, away from humidity,
protected from extreme temperatures and direct sunlight.
SAFETY PRECAUTIONS
The product contains cement powders which, when mixed
with water, release alkalis that could be harmful to the skin. It
is preferable to do the application a well ventilated area, to
wear protective gear for hands, eyes and respiratory system
and to avoid dust inhaling. Splashes on the skin should be
washed away by cleaning with soap and water. In case of
contact with eyes, wash thoroughly with clean water. If
swallowed, do not induce vomiting. In both cases seek
medical attention. The product is non-flammable.
DISCLAIMER
While the company guarantees its products against defective
materials, the use and application of these products are
made without guarantee since the conditions of their application
are beyond its control. It is recommended to verify with the
company that the product is suitable for the intended use,
and that this Data Sheet version is the latest one. The company
may modify it without prior notice. Technical characteristics
are listed for guidance only. For more information, please
contact the company’s office in your location.
NOTE
The information included on this Technical Data Sheet is the
sole property of SODAMCO Holding. The unauthorized disclosure,
use, dissemination or copying (either whole or partial) of this
data sheet or any information it contains, is prohibited and
subject to legal pursuit.
PG:19
2/2 Technical data sheet . Edition: 09.16-A
www.sodamco-weber.com