To make oil paint last longer, especially while actively painting, gently wrap your paint in aluminum foil, being careful not to apply pressure. Also, use a few drops of clove oil to keep the paints wet and increase their drying time.
Here's a breakdown of methods to preserve your oil paints, both during painting sessions and for long-term storage:
During Active Use:
- Aluminum Foil Wrap: As mentioned previously, this is a simple way to slow down drying. Take small amounts of paint and wrap it carefully to minimize air exposure.
- Clove Oil: This natural oil acts as a drying retardant. Adding a drop or two to your paint palette can significantly extend the working time.
Long-Term Storage:
- Minimize Air Exposure: Oil paints dry through oxidation (exposure to air). Squeeze out any excess air from the tube before sealing the cap tightly. If the tube is nearing empty, consider transferring the paint to a smaller container.
- Clean the Threads: Wipe away any paint residue from the threads of the tube and cap before closing. Dried paint can prevent a proper seal.
- Upright Storage: Storing tubes upright helps prevent the oil from separating from the pigment.
- Palette Storage: If you have leftover paint on your palette, try submerging it in water or oil (linseed oil is a good option). This creates a barrier against the air. You can also use an airtight palette box.
- Consider using a palette with a lid: A palette with a lid helps to slow down the drying process of oil paints.
By following these methods, you can maximize the lifespan of your oil paints and reduce waste.
