Deep-penetrating silicone primer Farbex

Deep-penetrating silicone primer Farbex


Deep-penetrating silicone primer



  • it penetrates deeply and hardens the base surface
  • it lessens water permeability of the base surface without significant effect to vapor permeability of a complex coating.

Sphere of application

It is intended for improving adhesion, hardening and leveling of absorption of different surfaces (bricks, concrete, slag block, concrete stuccos, chip wood boards, MDF, gypsum boards and other porous surfaces) before performing of any finishing works with a plaster or putty, coating with acrylic or silicon waterborne products inside and outside.

Technical data

Consumption standard of 1 layer 80-125 g/m2, it depends on condition and structure of the surface.
Thinner Water
Application It is applied with a roller, a brush or a spraying gun.
Drying period (23 °С, 50% RH) 1 hour. Drying period increases if the temperature is getting down and relative air humidity is increasing.
Solids content (DSTU ISO 3251) 6±1 %
Density (DSTU ISO 2811-1) ≈ 1 g/sm3
VOC content (ISO 11890) < 15 g/l
Warranty period 18 months from the date of manufacturing
(at the temperature from +5 °С till +35 °С)
Packaging 2 L, 5 L, 10 L (2 kg, 5 kg, 10 kg)



Application instruction


1. Surface preparation

The surface shall be dry, hard and without significant damages. It shall be clean of chalk and lime chalk whitewash, oil, bitumen and other dirt. Existing efflorescences, fragile and dirty areas shall be cleaned with a wire brush (a spatula) or with a polishing machine. Remove abrasive dust.

Non-significant defects of mineral surface shall be corrected with Finishing Putty TM Farbex. Polish the surface after that and remove the dust.

It is recommended to treat the surface with Antiseptic product TM Farbex for protection against mould and fungi.

Previously coated surfaces need no undercoating.

2. Applying

Stir thoroughly the primer before use.

The primer shall be applied evenly with a brush, a roller or a spraying gun. The temperature of air and the surface, which shall be undercoated, shall be from +5 °С till +35 °С and relative air humidity lower than 80%. Extremely absorbing surfaces shall be treated with the primer twice with intermediate drying of 1 hour.

Do not undercoat under direct sunlight, strong wind, frost or precipitation. The undercoated surface shall not be affected by precipitation or subzero temperatures before applying the finishing coating.

All subsequent works shall be performed not before 5-6 hours after the last coat of primer has been applied.

3. Tool cleaning

Clean tools with water after application. Do not let them dry.

Primers for mineral surfaces Farbex
Primers for mineral surfaces



Flow calculator

Consumption standard of 1 layer

When calculating the area to be painted, you need to subtract the area that will not be painted. (windows, doors, etc.)

Paint consumption may vary depending on dilution and uniformity of application of the paint.