Floor levelling plaster LT 4000

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Product description

Fescon Floor levelling plaster LT 4000 is a casein-free manually applied levelling compound with a special cement binder that is easy to level, and hardens and dries rapidly. 

  • For layer thicknesses 3-30 mm
  • Manually levelled
  • For floors with underfloor heating
  • Dries through hydration
  • Correction of grading in floor
  • Pre-levelling of seams between hollow-core slabs before application of pump filler


  • Concrete floor levelling indoors
  • Manual levelling, when the structure must be finished quickly
  • To correct errors in falls, and as a waterproofing substrate.
  • Graded casting using the pouring technique
The product is listed in the portal for building products that can be used in Nordic Swan Ecolabelled buildings.
GTIN code Product name Product number Package size
6416841202031 FLOOR LEVELLING PLASTER LT 4000 20 KG 20203 20 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


  • Carry out the priming in accordance with Fescon Adhesive Primer instructions, depending on the base
  • When beginning the levelling work, there must be no puddles of primer

Instructions for use

  • Mix a bag (20 kg) of the levelling compound in 3.6-4.0 litres of cold water
  • Mix the levelling compound into a consistent paste using a drill paddle
  • Apply the levelling compound with a steel trowel onto the levelled surface
  • Workable for about half an hour after adding water
  • Wash tools with water immediately after completing the work
  • Remove dried levelling compound mechanically


  • Can be covered using ceramic tiles, plastic or textile mats, vinyl tiles, wood parquet or cork.
  • we do not recommend leaving the floor levelling compound without coating

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

Material usage

1 mm layer approx. 1.5 kg/m²

Water requirement max. 3.6-4.0 l/20 kg
Binder special cement
Colour gray
Maximum grain size

0.6 mm

Package size 20 kg

storage time in a dry location approx. 12 months

Layer thickness

3 - 30 mm

Usage temperature


Workability time approx. 0.5 h
Drying time

approx. 1 day/10 mm (RH 50% +20°C)

Walkable approx. 3 h
Hardening time

approx. 1 day at +20°C

Strength class C 20 (EN 13813)
Compressive strength

> 20 MPa (28 days, +20°C, RH 50 %)

Adhesion strength

28 days > 1 MPa

Flexural bond strength F 5 (EN 13813)
Surface tensile strength > 1,0 MPa (28 days, +20°C, RH 50 %)


Limitation of liability, product use notes and restrictions: Please familiarize yourself with Fescon Oy's general terms of delivery and the design and work instructions related to the product.