Because the use of Gamsol and other solvents is so closely linked to brush cleaning, it is important for us to discuss the ins and outs of brush cleaning without the use of solvents. To this end, many painters have incorporated either mineral oil and/or “green/natural” solvent-alternatives for removing color from brushes during painting sessions. It is our stance that a material used for this purpose should do one of two things – either evaporate entirely out of paint layers (like Gamsol does), or contribute to the drying of the resulting paint layers. Mineral oil or cooking oil are non-drying and should not be incorporated into painting sessions, as even small amounts can interfere with drying. Many solvent-alternatives on the market do not evaporate completely and leave behind sticky/discolored residues in paint layers. These are best left out of the painting process entirely.
Gamblin Safflower Oil is ideal for cleaning brushes during solvent-free painting sessions. By using a simple “two rag” system outlined below, painters can reduce the amount of pigment that gets into their cleaning oil, and thus prolong its usefulness.
For brush clean-up during your painting session, first, wipe excess paint from brushes with a rag. Then dip your brush in a container of Gamblin Safflower Oil. Next, wipe the safflower oil and any remaining pigment from your brush with a second rag and continue painting.
After your painting session, brushes can be further cleaned using Gamsol and/or soap and water.
Please note that oil-soaked rags should be – at a minimum – properly stored in an Oily Rag Safety Can (such as those offered by JustRite™) until they can be thrown out. Even better, soak rags in water, and place them in an old jar or similar container and dispose of them outside in your household trashcan or apartment building dumpster.
*******Using either Gamsol or Safflower Oil for brush cleaning prevents pigments from being poured down the drain and contaminating the watershed. Additional information can be found on our page Oil Paint Brush Cleaning Tips.
We hope this information helps you navigate the world of Solvent-Free Oil Painting, and ultimately, create the safest painting studio possible.