Casein primer is a casein-based colourless primer for clay, lime, lime-cement and gypsum plasters and plasterboards before painting and plastering. Reduces the absorbency of highly absorbent surfaces and evens out substrates with different absorbencies. Fixes slightly sandy substrates. It is suitable for making a transparent fixing layer on plasters but makes the tone of the plaster a little darker. It is very absorbent, easy to process, economical and leaves a breathable surface that does not change the useful properties of the plaster. To prepare the primer, the powder is mixed with water, after which the material must be used within 3-4 days. Casein primer is easy to apply to the surface and its cost is low.
Suitable substrates are all untreated lime, plaster, cement and clay plasters, plastered plasterboard and concrete. Not suitable for glossy, non-absorbent and permanently moist surfaces.
We sell material according to square meters. The average consumption of the material is 5 g/m2.