Dry paints – Here you can buy color pigments online for a good price
What are colour pigments?
Dry paints are paints in powder form. We distinguish between earth colours and mineral pigments. These powders can be mixed perfectly with each other to achieve a very individual shade.
What are the most important properties of dry paints?
- lime-proof and resistant to sunlight
- non-toxic – sometimes even used as food colouring
- or indoor and outdoor use
- for the preparation of coloured filling compounds
- suitable for stains and paints
How are the colour pigments used?
First, the pigments need a binder. In the case of levelling compounds, it is the lime that is responsible for the binding.
You can also colour Punic wax to use it for painting or for effect glazes on Marmorino. This is the so-called Wachstempera technique. The saponified beeswax then serves as a binding agent. You can see which pigments are suitable for this on the respective product pages. For glazing painting techniques, the colour pigments are stirred into sintered lime water and painted onto the plaster with a glaze brush.
If you want to prevent pigment spots in Stucco Veneziano or Marmorino (these can of course also be a desired effect), the pigment colours must be soaked with the putty before mixing and processed into colour doughs.
The colour pigments for the coloured dough are processed with a wetting agent. After approx. 3 hours the pigments are swollen and can be stirred into the putty or the lime paint. You can read the exact instructions for mixing the coloured dough here.
What happens if the pigment content is too high?
If you have overdosed the colour pigments, the lime can no longer bind them properly. As a result, they will chalk or wash out outside.
You should pay attention to the following
- Filling compound: Max. up to 10 % colour pigments (by weight)
- Lime glazes with sintered lime water: Max. up to 5 % colour pigments on fresh plaster (fresh) or on dry plaster up to 2 % colour pigments (Secco technique)
- Colour intensity: Synthetic oxides colour more strongly than earth colours