Oil Painting classes are provided here by us. Oil painting is the process of painting with pigments that are bound with a medium of drying oil. Commonly used drying oils include linseed oil, poppy seed oil, walnut oil, and safflower oil. The oil may be boiled with a resin, such as pine resin or frankincense to create a varnish; often prized for its body and gloss. Different oils confer various properties to the oil paint, such as less yellowing or different drying times.