2-K Primer

Product description

Fescon 2-K Primer is a two-component, solvent-free epoxy primer that withstands heavy mechanical loads, lye, weak acids, mineral oils, and other chemicals.

  • improves chemical resistance
  • binds dust
  • increases wear resistance
  • A+B components as ready-to-mix portions
  • spreading with a rubber, plastic or metal trowel and airless spray


  • preparation of balcony and stone surfaces
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EAN code Product name Product number Package size
6416841762603 2-K Primer 76260 10 kg


Old concrete surfaces

Clean the old concrete surfaces of loose dust, dirt, grease and oil stains. Remove old, flaking coatings and paints, for example by sand blasting, grinding or milling. If the concrete surface is damaged, remove concrete until you reach healthy concrete. Open any cracks with an angle grinder. Patch any resulting cavities and open cracks and correct the grading of balconies using Fescon Repairing Plaster, grain size 3.0 mm or 1.2 mm, or Overlaying Plaster, depending on the layer thickness.

New concrete surfaces

Remove the cement paste layer from new concrete surfaces and vacuum the grinding dust carefully. If necessary, patch up the cavities and holes and overlay the surface as above. The concrete must have a strength of over 20 MPa and must be at least four weeks old before priming.

The treated surface must be dry, clean and structurally sound. The temperature must be between + 5°C and + 25°C and the relative humidity below 80%. The moisture content of the base must be below 90% relative humidity. Measure with a surface moisture meter. Mix carefully with a power mixer before use (less than 400 RPM). Use a mixing container; do not spread from the delivery package. The mixed product must be used within 30 minutes.

Spread the well-mixed Fescon 2-K Primer with a trowel or an airless sprayer onto the base so that the base becomes saturated. Prime very porous bases twice. The primer must be applied in such a manner that the surface film is continuous and there are no pores in the surface. The primed areas must be coated within 6-24 hours; if necessary, the primer can be sanded while fresh with clean, oven-dried quartz sand. In humid conditions, you must ensure sufficient ventilation. Wash tools with a suitable solvent immediately after use, for example with Fescon Thinner.

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

200-400 g  (single treatment)

Type liquid
Colour colourless
Package size component A 2.5 l container, component B 5.0 l container

stored at a temperature of + 5°C – + 20°C in dry conditions. Shelf life 12 months in the original, unopened container


1.0 kg/l

Lowest usage temperature

+ 5°C

Drying time

withstands pedestrian traffic after 24 h (+23°C RH 50%). Final drying 7 days

Pull-out strength > 1.5 MPa
Solid content

component A: 51% by weight
component B: 15% by weight

Thinner Fescon thinner
Method of application trowel or airless sprayer

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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