If prepared properly and maintained with longevity in mind, paper can be a permanent substrate for sketches, studies and finished oil paintings. Paper, like other natural fiber substrates such as linen or canvas, needs to be sized or primed before oil painting.
Then, can I paint on paper?
As long as you’ve chosen a high quality, acid-free paper, you can paint acrylic directly onto the surface of the paper and be assured that your painting will be of archival quality. … If you are using a paper that is not acid-free you should gesso both sides of the paper to seal it before beginning to paint.
Also question is, what kind of paper can you oil paint on?
The best paper for longevity is all-cotton or cotton & linen rag paper, which is essentially the same material used to make artist canvas. 140 lb/300 gsm watercolour paper works well as it is heavy enough to take the weight of layers of primer and will not easily cockle from the moisture in the sizing.