Fibre plaster FL

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Product description

Fescon Fibre Plaster FL is a polymer-modified, cement-based dry mortar that contains additives and plastic fibres. The maximum grain size is 0.6 mm. 

  • Easy to use
  • Excellent weather resistance
  • Good workability characteristics
  • Good grip on the base
  • Spray-applied or hand applied
  • Separate adhesives not required
  • Rubbable
  • Chloride-free


  • Plastering of concrete, lightweight concrete and brick surfaces
  • Plastering of concrete, lightweight concrete and lighweight aggregate block surfaces
  • The reinforcing mortar for the Fescoterm thin-layer plastering systems’ insulation panels
  • Reinforcing plaster for Fescopanel board plastering system
EAN code Product name Product number Package size
6416841450210 Fibre plaster FL 45021 25 kg

Clean the entire base of loose dust and dirt. Wet the surface to be plastered until it is darker in colour before beginning the plastering work. The best time to wet the surface is the previous night.


Refer to the bag for how much water the plaster requires. Add the dry material to the water and mix with a concrete mixer for around ten minutes. With a power mixer or a drill paddle, around one to two minutes of mixing is sufficient. Allow the plaster to stand for around ten minutes and mix it again for a short while. Find the correct consistency at this stage by gradually adding the rest of the water. We do not recommend adding all of the water right at the start. The finished plaster remains workable for around two hours.

Work instructions

Spray the Fescon Fibre Plaster all around onto the base in a layer 4-6 mm thick. If you wish, you can also spread the plaster manually using a steel trowel. Level the surface by spreading a second 2-3 mm layer of fibre plaster on top of the first layer before coating. Use the Fescon Facade Coatings for coating.

After treatment

Give aftercare to the plaster surface by spraying it with water. The need for aftercare depends on the conditions, and it should last at least 1-3 days.

Storage and handling of waste
See the separate storage and disposal instructions

Material usage

9 - 14 kg/m²/layer

Water requirement 5.0 - 6.0 l/25 kg
Type powder
Colour gray
Maximum grain size

0,6 mm

Package size 25 kg

in a dry location approx. 1 year

Layer thickness

6 - 9 mm

Lowest usage temperature


Workability time app. 2 h
Fire class A1, unburnt