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Product description

The new capillary hydrophobic, pure silicone resin technology of the Fescosan coating promotes the washing away of dirt during rain. Durable coating for both indoor and outdoor use. Fescosan dries rapidly into a rainproof coating also in unfavourable conditions, allowing it to be used around the year. The coating is highly water-resistant, which minimises dirt accumulation and keeps the façades clean for long periods of time. The optimal water and dirt resistant effect is usually achieved after around three months of exposure to weather. It is based on the latest binding agent technology and filler packets, combined with a new type of granulates. Fescosan coating provides constant finish patterns on plaster, concrete and fibre cement surfaces, and old, well attached coatings. 

  • Water-soluble
  • Grain size 1.5 mm, 2.0 mm or 3.0 mm
  • Promotes the washing away of dirt during rain
  • High diffusion, CO2-permeable
  • Good weather and driving rain resistance
  • Highly water-resistant
  • High endurance of mechanical stress
  • Working temperature over + 1°C
  • Extremely effective coverage, excellent colour brightness and light resistance
  • Best, pliable working characteristics
  • Alkali-resistant, hence not saponified
  • Includes an additive that prevents the formation of mould and algae
  • Large selection of colours, strong colours also included


  • Concrete surfaces
  • All plastered surfaces
  • Fibre cement boards
  • Firm old coatings
  • For outdoor and indoor use
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
6416841760814 Fescosan-Coating 2 mm 86081 25 kg
Fescosan-Coating HR 1 Fescon colors 50314 25 kg
Fescosan-Coating HR 2 other colors 50315 25 kg
Priming of concrete surfaces

Remove any poorly attached and flaking coatings and paints from concrete surfaces, for example by water sand blasting. Remove damaged concrete by chiselling, water sand blasting or milling, depending on the type and extent of the damage. Shape the cavities and clean any rusted reinforcement bars to grade St 2, or replace them with new ones. Apply Fescon Adhesive Plaster on the rebars and repair holes with Fescon Repairing Plaster. If necessary, overlay the repaired surfaces with Fescon Overlaying Plaster. Roughen the new concrete surfaces and clean them of cement paste, for example by water sand washing or steel brushing. The surface treatments can also be carried out during the element manufacturing. New concrete surfaces can be painted after a minimum of one heating season

Priming of plaster surfaces

Remove old poorly attached and flaking coatings and paints from plastering surfaces. Remove plaster layers that have become separated from their base until you reach an undamaged plaster layer. Apply repair plaster in three or two layers or as surface plastering depending on the depth of the damage. Shape the structure of the surface plastering to match the original plaster surface. Take the composition of the old plasters into consideration while working. Allow places with deep plaster and new plaster surfaces to dry for 4-8 weeks before painting depending on the conditions. When pre-treating and painting bases containing asbestos, you must take the protective measures prescribed in the decisions of the government and the National Board of Labour Protection.

Test coating

Before beginning work, carry out a test coating to ensure the correct tint.


Prime with Fescon Silicone Resin Primer MC.


Apply the plaster to the wall, covering the entire surface, using a stainless steel trowel. Float immediately using a plastic trowel or a PU float using circular motions. You can also apply the product with a sprayer (nozzle size 6-8 mm) and leave the sprayed plaster untouched. The base must be dry. In order to avoid working seams, apply the coating to continuous façade surfaces using the wet on wet principle at the same time using the same product batch. If you must switch to a new batch, you must mix the old and new batches together.  Thin if necessary with max. 2% water in order to improve workability.

During coating and drying, the air temperature must be at least + 5°C and the relative humidity no more than 80%. If the product has been stored at a low temperature, it must be temporarily stored at a temperature of around +20°C before working. Do not work with the product in direct sunlight or in high winds. Clean tools with water.

After treatment

The fresh coating must be protected from too rapid drying, frost and rain during the work and until it has dried entirely.

Service instructions

A dirty surface can be cleaned with a pressure washer. Remove any damaged spots and repair the holes. Repaint with Fescon Silicone Resin Paint. One treatment is sufficient for a cleaned, undamaged surface. Priming with thinned Silicone Resin Paint is also needed for damaged areas from where the paint has been removed or holes have been patched.

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

Material usage

2.0 – 4.0 kg/m2 (1.5 mm – 3.0 mm)

Type liquid
Colour Fescon colour chart tints
Package size 25 kg container

Must be stored in a dry and cool but non-freezing location at a temperature of +5°C...+25°C. The maximum allowed storage temperature +25°C must not be exceeded.


approx. 1.87 kg/l

Lowest usage temperature


Drying time

depending on conditions, dries through in 1-2 days per one mm of thickness

Pull-out strength ≥ 0.3 MPa
Water vapour permeability

sd V1 high

Relative air humidity less than 80%
Carbon dioxide diffusion resistance

approx. 75

Water vapour resistance

sd value  V2 (average level)

Thinner water
Transport warm transport
Tintability can be tinted
Colour durability

B1 (according to BFS bulletin #26)

Gloss group

Very matt

VOC content

30 g/l EU limit value for the product cat. A/g 30 g/l (2010)