The ideal temperature for storing paintings is room temperature between 60f and 80f 16c 26c.
Room temperature for oil paintings.
This paint contains coalescing agents that bolster paint curing attributes during low temperatures.
For example at an ideal temperature of 75 degrees f you can usually recoat after four hours.
Although acrylic paintings dry faster than oil paintings oil paintings have a harder surface once they dry.
The key reason that the surface of acrylic paintings remains softer and more flexible at room temperature is because of their chemical makeup.
If you must paint in lower temperatures purchase the specially formulated latex paint made to perform in temperatures as low as 36 degrees f 2 2 c.
Oil based paint between 45 90 degrees.
If acrylic paintings are stored at really low temperatures 40f 4c or below the paint film will become brittle which could result in damage.
I paint on wood braced panels i make myself.
Some sources say even 50f 10c is too risky.
The type of paint is also important when it comes to temperature and humidity.
Moisture can destroy and warp a painting and its frame so it s important that you store paintings carefully.
Store your paintings in a dry room wrapped in tissue paper.
Storing a painting in the dark will cause the oil painting to become darker over time.
Painting in cold weather using alkyd or oil paints requires even more time in some instances more than 48 hours before recoating.
By way of example temperatures above 45 degrees fahrenheit are recommended when using oil based paints.
Use tissue paper breathable sheets or foam to protect your oil paintings while you store them.
Size the panel first before applying an alkyd lead oil ground.
However latex and acrylic paints work much better in temperatures that exceed 50 degrees fahrenheit.
If you do be sure to size your canvas first before you paint.
You must prep your canvas properly.
I don t recommend painting on stretched canvas.
Right now i have a cheap set of acrylics and oils that have been heretofore kept at room temperature for a few years.
Will the cold or temperature fluctuations damage the paints or paintings.
The average winter temperature here ranges from 18 to 33 f 8 to 1 c though i m sure it doesn t get that cold upstairs.