One of the most common questions artists ask is how to dry oil paint overnight. The answer is a little complicated and varies for each type of painting. Some colours dry more quickly than others, and this is dependent on the pigments used. Some colours can be fast-drying, while others can be quite slow. Using a drying medium can speed up the process. Liquin, Liquid Starch and turpentine can be used to thin paint for the base layer. When this is done, the painting will dry overnight.
To speed up the process, you can use a fan, electric dehumidifier, or a room heater. You can also try to put the painting in the air-conditioned room of a friend, but make sure that you are at least 1.5 meters away. If you can't find a fan, you can also use a hairdryer. Leaving the painting in a room with a heater can also help.
There are a few methods that will speed up the drying process of oil paint. One of these is by adding a layer of damar varnish to your painting. Damar varnish is a mixture of damar resin crystals with turpentine that gives oil paints a glossy finish. The painting will dry within 45 minutes, though you can increase the speed by placing a fan over it. Be sure not to breathe in the fumes while using damar.
The drying time of oil paint on different materials is different. Check out my another article about How long does oil paint take to dry.