How to determine which color type has been used before?

Test with methanol
Attach / tape a soaked cloth a few minutes to the surface. If dissolved / the paint becomes discolored, it is an acrylate or latex paint (acrylate is a latex paint). Methanol does not disolve alkyd or linseed oil.

Test with lye (NaOH in water)
Put on a cloth soaked with lye and wait a few minutes. The lye dissolves (saponifying) alkyd - and linseed oil paints. Old linseed and alkyd oil color becomes brittle.

How to determine if the surface is sufficiently dry and sucking / suitable for painting with silicate paints?

Make the water test. Splash water on the surface. If the surface is becoming wet and water tend to be sucked into the surface it is suitable for silicate painting. But if water drops are formed and rejected there are too many water repellent substances such as plastic, oil or grease in the surface.

Why does WATER GLASS and PRIMER treatment of plaster, concrete and marble provide a stronger substrate?

Treatment with water glass containing products produce calcium silicate which resist air, moisture and weather much better.

Why does silicate paints resist the growth of microorganisms (algae and molds)?

The salt potassium carbonate is formed which is very easily soluble in water and forms a strong alkaline environment (PH> 10). Microorganisms do not survive in this very alcaline environment.

Can silicate paint be used on wood?

Yes, absolutely for indoor use. Silicate paint binds very well to wood and adds a fire retardant effect with its almost 100% mineral and non-combustible composition.

How are the different colors of ALABASTER silicate paint produced?

We blend different ready made ALABASTER colored products into new colors. The advantage is that we do not add commercial concentrated color pastes containing biocides, organic solvents and other specialty chemicals.

What is the difference between binder watger glass and synthetic acrylate binder?

Water glass reacts chemically with the carbon dioxide of the air and the mineral substrate to a microcrystalline structure that is completely open to diffusion of moisture and carbon dioxide. Acrylate adhesive binds to the surface as a glue and forms continuous plastic film that prevents moisture and carbon dioxide from diffusion. Acrylate is degraded by the sunlight, resulting in a shortened life span of the paint.