Flow H

Product description

Fescon Flow H is a low-alkali (pH < 11), casein-free, pump-applied levelling compound with a special cement binding agent, that is easy to level and features excellent workability.


  • Easy to level
  • For layer thicknesses 4 - 30 mm
  • Dries through hydration.
  • Can be pump-applied


  • For finishing concrete floors in flats, offices, public buildings, schools, hospitals and other such sites
  • Tanker pumping is not recommended at temperatures < -25°C
The product is listed in the portal for building products that can be used in Nordic Swan Ecolabelled buildings.

Vinkki! Vieritä taulukkoa sivuttain
EAN code Product name Product number Package size
6416841202314 Flow H 20 KG 20231 20 kg
6416841390738 Flow H 39073 1000 kg
Flow H 33122 1 kg


  • Clean, solid and dust-free
  • Sufficient strength, load-bearing capacity and immobility
  • Relative humidity < 95% RH
  • Temperature > + 10 °C
  • Loose layers, cement paste and other impurities must be mechanically removed
  • If the adhesion strength of the base is < 0.5 MPa, the floor is constructed as a floating structure using Flow HS
  • Carry out the priming in accordance with Fescon Adhesive Primer instructions, depending on the base
  • The primer must be dry before levelling
Instructions for use
  • Mix a bag (20 kg) of the levelling compound in 4.0-4.4 litres of cold water
  • Do not use any more water, because this decreases the surface strength
  • Mix the levelling compound carefully and long enough to form a consistent paste
  • Apply the levelling compound with a steel trowel or pump it onto the levelled surface
  • Workable for about half an hour after adding water
  • Wash tools with water immediately after completing the work
  • When pumping, the relative humidity in the air must be >40%
  • Can be floored using ceramic tiles, plastic or textile mats, vinyl tiles, wood parquet or cork
  • The floor levelling compound (once it has dried) must not be left uncovered for longer than three months
After treatment
  • Once the base has dried sufficiently for the chosen flooring, the flooring is installed or the aftercare begun
  • In conditions with an RH of less than 40%, special attention should be paid to when to start the aftercare
Waste handling

Storage and handling of waste. See the separate storage and disposal instructions https://www.fescon.fi/en/material-bank

Technical information

Material usage

1 mm layer approx. 1.7 kg/m²

Water requirement 4.0-4.4 l/20 kg
Binder special cement
Colour grey
Maximum grain size

0,6 mm

Package size 20 kg, 1000 kg, bulk (kg)

storage time in a dry location 12 months

Layer thickness

4 - 30 mm, when pumping the minimum layer thickness is 5-10 mm, depending on the pumping equipment

Lowest usage temperature

+ 10°C – +25°C

Workability time app. 0,5 h
Drying time

approx. 1 day/10 mm (RH 50% + 20 °C)

Coatable approx. 1-3 weeks (RH 50% + 20 °C)
Walkable approx. 4- 6 h
Strength class C 20 (EN 13813)
Compressive strength

> 20 MPa (28 days, +20 °C, RH 50 %)

Adhesion strength

28 days > 1.5 MPa

Flexural bond strength F 5 (EN 13813)
Surface tensile strength > 1,2 MPa (28 days, +20 °C, RH 50 %)
Wear resistance

RWFC 550 (EN 13892-7)

The information is based on tests and practical experience. We cannot affect conditions at the work site so we cannot assume responsibility for the end result affected by local conditions.


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