How long do oil paints on glass take to dry?

Question

I am an artist, and I have painted in oils, but never on glass. I know they are durable and I enjoy oils, hence my tentative choice to use the medium, however pending my acceptance into the show I would only have three weeks to paint multiple paintings on glass and have them be at least dry to the touch / able to be handled for the show. I am reading that it can take quite a long time to dry on glass. Normally where I live in a dry place, it takes about a week for a decent layer (even thicker layers depending) to dry on board, fabric, or masonite, and it can take a layer with lots of medium only a few hours.

Any answer would be appreciated :3. I am not going to be using kiln fired paints or glass enamels, I want to know for regular oil paints (artist quality)

Answer 1

Oil paints don't actually dry. The oil in the paint slowly becomes rancid over time, giving the appearance of being dry. This process normally takes around six months, but some oil paints dry quicker than others. Since glass is non pourous, it could take longer.



If you need to speed up the process, I recommend using walnut alkyd medium from M. Graham. I have used it before painting on canvas, and my paints were dry to the touch in a couple of days.

Answer 2

Oil paint is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and varnish may be added to increase the glossiness of the dried oil paint film. Oil paints have been used in Europe since the 12th century for simple decoration, but were not widely adopted as an artistic medium until the early 15th century. Common modern applications of oil paint are in finishing and protection of wood in buildings and exposed metal structures such as ships and bridges. Its hard-wearing properties and luminous colors make it desirable for both interior and exterior use on wood and metal. Due to its slow-drying properties, it has recently been used in paint-on-glass animation. Thickness of coat has considerable bearing on time required for drying: thin coats of oil paint dry relatively quickly