Pigments through the ages
Painting tools: acrylic painting brushes (Ask.com)
Brush techniques (John Lovett)
All about paint brushes (Scale model guide)
Artist colours and materials (Natural Pigments)
This website, Natural Pigments, explains painting techniques and preparation. This is a commercial website but contains valuable information about rare materials and techniques.
Painting techniques: history and definitions
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Until paint was produced commercially during the Industrial Revolution (circa 1800), painters had to make their own paints by grinding pigment into oil. The paint would harden and would have to be made fresh each day. Paint consists of small grains of pigment suspended in oil. Although it appears smooth to the naked eye, on a microscopic level, particles of pigment are suspended in oil, as fruit in a Jello mold.
Oil paints do not "dry" by evaporation (as do watercolor paints); rather they harden through chemical reaction, as a Jello sets. Contact with the air causes oils to oxidize and to crosslink. The paint sets and hardens over time. Paints of different pigments dry at different rates. Charcoal black retards the drying (creating a slow-drying paint); ochre accelerates the drying (producing a quick-drying paint).
The painting techniques of Ad Rheinhardt: abstract painting
Painting examples according to subject
How to paint like...
Painting processes and techniques
Painting techniques video tutorials
How to make your art project exciting: inventive uses of media for painting students (Part 1)
Painting on grounds: inventive uses of media for painting students (Part 2)
Beyond the brush: inventive uses of media for painting students (Part 3)
How to draw and paint faster
Painting techniques - Frank Curkovic
Painting techniques - Charlotte Jirousek
Beyond the brush: inventive use of media for painting students (Part 3)