Sunday, April 11, 2010
April Guest Artist
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We welcome the work of Karen Renfrow from Oklahoma City, OK. Her vibrant works are filled with color and life. Her work will hang until April 30. Prints are available and you will want to see her paintings of old trucks and scenery as she interprets them with oil paint, brush strokes and palette knife. Included in the show are several pieces in watercolor and pen and ink.
COFFEE AND CONVERSATION
Coffee and Conversation has been cancelled tomorrow due to our upcoming 6x6 Exhibit!!! We will let you know in the near future if we will reschedule for this month.
Please join us Thursday evening from 6-9 for the 6x6 Show............it is sure to please!!!
TIPS ON FREEZING OIL PAINT
In my oil painting classes, the issue of freezing the paint left over on your palette comes up often.
I subscribe to an online newsletter written by Marion Boddy-Evans and this article is attributed to her.
Pay particular attention to the latter portion that deals with freezing under water.
QUESTION: FREEZING OIL PAINT..........
The tip about freezing of oil paints to preserve them between painting sessions, usually suggested as placing your entire palette in the freezer, in based on the fact that oil freezes are a very low temperature. (It's far lower than water.) Given the temperature a domestic freezer is usually set at, leftover oil paint put into it is unlikely to freeze because it doesn't get cold enough.
I put the question to about freezing oil paint to Anne Marie Helmenstine PhD, About.com's Guide to Chemistry, who said: "The freezing point of linseed oil (the predominant oil in oil paints) is -20°C (-4°F). Most people set their freezers at 0°F, so oil paint will not freeze in most home freezers.
"Oil paints work better when applied at cold or even freezing temperatures, but the paintings themselves are embrittled at low temperatures, especially if the humidity is low. It's fine to store your oils in the freezer if you're taking a break. The cold temperature will slow the rate of oxidation and evaporation, preserving the paint. But once you start a canvas, it's better for the painting to maintain it at a room temperature that's cool but non-freezing, otherwise the painting may become brittle."
An article in issue no 12 of Golden's Just Paint by a "scientist who specializes in coatings" says this about freezing oil paints: "Oils also become more brittle when cold, but embrittlement occurs at temperatures below freezing. ...significant drops in temperature from 23°C down to below freezing at very low humidity can create stresses in a fairly young 13 year old oil paint film that will exceed its breaking point."1
The tip about submerging leftover oil paint in water to preserve it, is a centuries-old one. In a book on color published by the National Gallery in London, David Bomford (Associate Director for Collections at the J Paul Gerry museum in Los Angeles) and Ashok Roy (director of Scientific Research at the National Gallery in London) write: "...by early Renaissance times professional supplies of pigments existed ... Prepared oil paints were kept in the studio under water to prevent them from drying out."2
Of course traditional use doesn't always match modern scientific knowledge. Asked about submerging oil paint under water, Anne Marie said: "Exposing an oil painting to water or high humidity is damaging because it can disrupt the cross-linking of polymers, leading to a loss of adhesion (which is naturally poor because linseed oil is not a strong adhesive).
"I would not recommend storing paint or a palette under water, since high humidity inhibits polymer cross-linking, weakening the paint. If the paint is sealed, this serves no purpose except perhaps to prevent rapid temperature swings. If the paint is not sealed, the high humidity can be damaging. Exposure to alkaline conditions may also increase the degree of yellowing over that which would naturally occur."
And to quote from Just Paint again: "There are also chemical reactions that can break the polymer chains in oils. The most common is chemical reaction with water. This reaction is usually slow, but it gets much faster if the paint film is exposed to humid air under alkaline conditions. This becomes a problem if the paint is formulated with alkaline pigments or if it is applied over an alkaline surface."1
So although there's anecdotal evidence from oil painters who've put their oil paints under water and not seen any issues, and it's a practice with a long tradition, it isn't sound on a chemical level. But freezing oil paints, that's fine if you've a large enough freezer. Personally, I think I'll stick to using my freezer for ice cream.
posted by Dalsing
RUSSIAN ARTIST, NYBORG, SPEAKS AT GALLERY
Our May Third Thursday was well attended and all enjoyed the talk given by Tatyana Nyborg. She brought with her several examples of Russian folk art and explained how each piece was created. She discussed the life of the artist in Russia and the difficulties they faced particularly during political upheavals and war.
Tatyana lives in Mannford with her husband and son, Tony, who came with his mother to the gallery. Her education and degrees, received in Russia are in jouralism. She has worked as a journalist here in Oklahoma.
posted by Dalsing
RUSSIAN ARTIST TO SPEAK AT WATER STREET ART GALLERY
TATYANA NYBORG, Russian artist living in Oklahoma, will give a talk on our Third Thursday demo night, May 20. She will bring along some Russian folk art to show us and discuss how it is created. She will talk about the life of the artist in Russia, tell of her own life and artistic path, and perhaps how she likes being an artist in Oklahoma and the United States.
Please join us at the gallery, 6:30 pm, to listen to this delightful and interesting artist.
posted by Dalsing
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