What is the best oil painting medium?

Related questions

1. Does oil paint dry shiny?
2. Can I do oil painting on paper?
3. Can I use watercolor paper for oil painting?
4. Can I oil paint on watercolor paper?
5. Is oil painting easier than acrylic?
6. Which canvas is best for oil painting?
7. What oil can be used for oil painting?
8. Do you need to prime a canvas for oil painting?
9. What is glazing painting technique?
10. What does adding glaze do to paint?

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