They are oil paint in sollid form with wax and I am guessing they can as they have oil in them ? But just wondered as they were in sollid dry form do they would they have less tendencey to yellow unlike oil paints?
Sculpture is what you bump into when you back up to see a painting..Barnett Newman
Ah ooh thanks so much sarah Amazeing art on your website wonderfull The oil pastel i since discover they have whats called a non drying oil a downfall in using pastels as they difficult never dry .Also so you could not say then put water based medium over oil obviously …was just curious about different mediums
Sculpture is what you bump into when you back up to see a painting..Barnett Newman