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Colourful facade coatings with inorganic colourants
This article describes why inorganic pigments are the best choice for colouring facade paints. It gives some guidelines on how to make the choice for the pigments that are right for applications. Areas of attention in using the pigments are also indicated. Since every combination of paint and colourant is different, it is strongly advised to test the performance of the coloured system of choice. The described pigments and many more, are part of a new flexible colour concept that enables customisation of the colour system and can be adjusted to needs. Inorganic pigments can be natural or synthetic. Natural pigments include ochres and umbers. Synthetic inorganic pigments can be divided in complex inorganic coloured pigments (CICP) (eg nickel titanate yellow, cobalt blue), metal oxides (eg iron oxide), metal salts (eg chrome yellow) and others (eg ultramarine blue). Inorganic pigments are considered to be nontoxic. Many of these pigments are even approved for toy coatings (EN 71 -3). It is well known that inorganic pigments can not provide the bright and strong colours that can be produced with organic pigments. The sensitivity to fading is significantly higher for organic pigments than for inorganic pigments (that contain metals in the form of metal oxides and are therefore not sensitive to oxidation). Inorganic pigments also show advantages with respect to heat build up, enhancing the durability of the coloured coating even more.
Colourful facade coatings with inorganic colourants
This article describes why inorganic pigments are the best choice for colouring facade paints. It gives some guidelines on how to make the choice for the pigments that are right for applications. Areas of attention in using the pigments are also indicated. Since every combination of paint and colourant is different, it is strongly advised to test the performance of the coloured system of choice. The described pigments and many more, are part of a new flexible colour concept that enables customisation of the colour system and can be adjusted to needs. Inorganic pigments can be natural or synthetic. Natural pigments include ochres and umbers. Synthetic inorganic pigments can be divided in complex inorganic coloured pigments (CICP) (eg nickel titanate yellow, cobalt blue), metal oxides (eg iron oxide), metal salts (eg chrome yellow) and others (eg ultramarine blue). Inorganic pigments are considered to be nontoxic. Many of these pigments are even approved for toy coatings (EN 71 -3). It is well known that inorganic pigments can not provide the bright and strong colours that can be produced with organic pigments. The sensitivity to fading is significantly higher for organic pigments than for inorganic pigments (that contain metals in the form of metal oxides and are therefore not sensitive to oxidation). Inorganic pigments also show advantages with respect to heat build up, enhancing the durability of the coloured coating even more.
Colourful facade coatings with inorganic colourants
Farbenfrohe Fassadenanstriche mit anorganischen Farbstoffen
Oorschot, Heleen Teleng van (author)
PPCJ Polymers Paint Colour Journal ; 202 ; 22-25
2012
4 Seiten, 12 Bilder, 4 Quellen
Article (Journal)
English
Blue inorganic colourants/pigments and process for preparation thereof
| European Patent Office | 2017