NATURAL PIGMENTS
Description
The range of natural pigments consists of ochres, oxides, earths (sienna) and umbers. These natural pigments originate from the erosion of various rocks in countries like France, Italy, Spain, Cyprus, and so on. The quarried rocks are washed, dried and pulverized. The main ingredient and chromatophores of natural pigments is iron oxide, complemented by several other oxides. Depending on the composition, we talk about ochres, oxides, earths or umbers. If the earths and umbers are calcinated the colour changes from yellow to reddish-brown and we speak of burnt earths and burnt umbers. The natural pigments are all in soft natural colours ranging from yellow, red and brown to black.
Characteristics
Because of their excellent UV- and weather resistance, the natural pigments can be used under practically all circumstances in- and outdoors. Because of their alkali resistance and good colouring power these pigments are most suitable for lime- and cement products. Natural oxides are acid resistant and they can be used in combination with many chemicals. Because these natural oxides provide good coverage, they are widely used in paint products. The temperature resistance of natural oxides differs in the various colours: yellow, black and brown are resistant to 177°C, red has a much higher resistance and can be used in the production of ceramics. Natural oxides are good UV absorbers and they can protect polymers in plastic and paint against disintegration by UV radiation. Natural oxides are non-toxic.
Because of their excellent UV- and weather resistance, the natural pigments can be used under practically all circumstances in- and outdoors.
Because of their alkali resistance and good colouring power these pigments are most suitable for lime- and cement products.
Natural oxides are acid resistant and they can be used in combination with many chemicals.
Because these natural oxides provide good coverage, they are widely used in paint products.
The temperature resistance of natural oxides differs in the various colours: yellow, black and brown are resistant to 177°C, red has a much higher resistance and can be used in the production of ceramics.
Natural oxides are good UV absorbers and they can protect polymers in plastic and paint against disintegration by UV radiation.
Natural oxides are non-toxic.
Range
Stoopen & Meeûs has a range of ca 25 natural colours in stock. Specific colours can be obtained by mixing. (from 500kg pre-mixed) The full range of natural pigments is compatible with all the other pigments and there is no limit to any mixes. With synthetic iron oxides, natural pigments are the best pigment price-quality for many uses. Colour chart: Natural oxides, ochres, earths and umbers
Stoopen & Meeûs has a range of ca 25 natural colours in stock. Specific colours can be obtained by mixing. (from 500kg pre-mixed) The full range of natural pigments is compatible with all the other pigments and there is no limit to any mixes.
With synthetic iron oxides, natural pigments are the best pigment price-quality for many uses.
Colour chart: Natural oxides, ochres, earths and umbers
Use
Cement products like industrial flooring, concrete blocks, concrete bricks, roofing tiles, tiles, grouting, terrazo, etc. Lime products like mineral paint, fresco, plaster, ornaments, etc. Synthetics like plastic, bitumen, asphalt, rubber, resins, quartz flooring, etc. Paint like oil and water colour, etc. Fertilizers Paper, cardboard, etc. Products for treating wood
Cement products like industrial flooring, concrete blocks, concrete bricks, roofing tiles, tiles, grouting, terrazo, etc.
Lime products like mineral paint, fresco, plaster, ornaments, etc.
Synthetics like plastic, bitumen, asphalt, rubber, resins, quartz flooring, etc.
Paint like oil and water colour, etc.
Fertilizers
Paper, cardboard, etc.
Products for treating wood