




J wexler wrote:They were well into glazing by the middle ages. Ceramic glazes mad their appearance about 3000 BCE in Mesopotamia. The Craft of pottery "painting" did not involve paint, but glaze.
Natural slip (basically different colored clay in liquid to paste form can be painted on before a second (I believe) firing.
Pigments could be derived from natural earth metals and the like, such as yellow from ochre, or greens from copper salts. Others like black could be made from charcoal or soot. The range of colours available does seem relatively large, but almost all colours are subdued even dull to the modern eye. There are no really bright colours ; even pure white was not available. Dull or off-white could be made from burnt lime and was used as whitewash for buildings.
For an example range of period colours see http://www.milkpaint.com/color.html Binders could be egg yolk (tempera) and/or milk (casein), but it is very questionable as to whether such paints would remain weatherproof. Oil base binders were probably also used. Turpentine could be produced by heating pine trees over a collecting pit, and know that turps based paints were used on ships because turps was used to thin out tar as a protective coating to ship timbers. Similarly linseed oil is a traditional paint binder, and which considering the production of linen should have been available.
Buttermilk? That's the main Ingredient they use to paint the longship with at Roskilde.
If you use the search function, you'll find that there have been discussions around paint etc before.
Linseed oil can be provenanced as a varnish in Europe from the 8th century onwards and obviously you can just mix pigments into the oil to produce a coloured opaque varnish/paint.
This seems to be was used to create the yellow and red paints found on woodwork in the Prittlewell chamber burial. It's also thought to be the source of the red paint found on some rune stones.
How To Redden Doors; and Linseed Oil
If you want to redden doors, get linseed oil which you should make in this way. Take some flax seed and dry it in a pan over the fire without water. Then put it in a mortar and pound it with a pestle until it becomes a very fine powder. Put it back in the pan, pour in a little water, and heat it strongly. Afterwards wrap it in a new cloth and put it on the press where oil is usually pressed from olives, nuts and poppy seeds, and press out this oil also in the same way. Grind some minium (red lead, Pb3O4) or cinnabar with this oil on a stone without water, spread it with a brush on the doors or panels that you want to redden and dry them in the sun. Then coat them a second time and dry them again. Finally spread on top if it the gluten called varnish...
"Very little is known of the actual extent of Viking Age painting. Black, red, yellow, and brown comprise the majority of colors employed in extant Viking painted artifacts. Most known Viking painting was executed on carved woodwork; the Gokstad ship tiller and the Oseberg sledges are some standout examples of carved painted woodwork. Usually the objects were painted a light color (white, yellowish white or plain yellow) and highlights were picked out in black, brown, and/or red. (Yes, even Vikings knew that the heraldic color system works!) Rows of dots or billets, sometimes paired with parallel lines, are found on some extant pieces" (Mistress Þóra Sharptooth, "Personal Display for Viking Age Personae: A Primer for Use in the SCA").
Another interesting source for Viking Age paint on wood comes from shields. The Gokstad ship, for example, had 64 shields, with some painted entirely in yellow, with the others painted in black (Nicolay Nicolaysen, The Viking Ship Discovered at Gokstad in Norway). Other interesting examples of painted wooden shields come from Ballateare and Cronk Moar, on the Isle of Man. The Ballateare shield has a leather facing that was painted, instead of the paint being applied to the wood, and it seems to have been painted with black and red patterns on a white background, using a gesso (organic matrix, such as egg yolk) paint was used, while the Cronk Moar shield has traces of white paint (Bersu and Wilson 1966. Peter Beatson, The 'Viking Shield' from Archaeology). Another example is from a 10th century chamber grave at Grimstrup, Denmark, where a circular wooden board that covered the corpse from head to hip, considered to be a "shield blank" or unfinished shield, "was elaborately painted with interlace patterns, though the overall design is no longer discernible. The background colour is dark blue, the interlace is grey-green edged with white lines. Some lines of red paint and white dots are also visible"
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For one example of surviving paint on wood, consider the Gokstad ship, which had 64 shields, with some painted entirely in yellow, possibly using a paint based on orpiment, As2O3, and the others painted in black, possibly with a paint based on charcoal as its pigment agent.
"Red pigments in ancient paints seem to derive from mineral sources i.e..red ochre (Fe2O3, as on the Jelling figurine: Marxen and Molkte 1981); or cinnabar (HgS, as on the Illerup shield of c.200AD: Forhistoriskmuseet, Moesgard Denmark: pers. obs. 1994). Also on the Jelling figurine were a dark blue paint made by mixing powdered white chalk with burnt organic matter (charcoal?), and a yellow of orpiment (As2O3) in an oil base" (Peter Beatson, (Peter Beatson, The 'Viking Shield' from Archaeology).
Theophilus describes creating paints from a variety of pigments: red from burnt ocher, cinnabar, minium (red lead, Pb3O4), carmine (cochineal), and folium (a vegetable juice); yellow from orpiment or saffron, green from various copper salts, especially copper acetates and copper chlorides, as well as various chlorophyll greens from vegetables; blue from copper carbonate (Cu3-(CO3)2OH2), indigo, and various plant substances; black from lampblack or ground charcoal; and white from lead carbonate, ground bone ash, calcium carbonate, lime, gypsum or chalk.
Natural slip (basically different colored clay in liquid to paste form can be painted on before a second (I believe) firing.