It does seal the paper somewhat but I’m not sure if it would allow for painting watercolor over something not absorbent. It would be interesting to experiment with that.
I second what Kathleen said. You can paint with watercolor on top of this gelatin ground. You do lose some of the absorbency of the paper. But if you are asking if you can apply it as a sort of fixative layer, you may be able to spray it while it's warm, and that in theory would create a transparent fixed layer (although I might recommend looking into casein fixative with a grain alcohol vehicle, because the alcohol won't activate the watercolor, and it would sort of do the same thing... Brushing it over would likely re-activate the watercolor paint, because there is water in the gelatin mixture.
![FAQs about papermaking • sizing, colors, left over pulp, thickness, etc. [diy handmade paper]](http://i.ytimg.com/vi/0H_f0et3Jf8/mqdefault.jpg)
Did u stretch b4 or after applying gel grd
Can this be used as a transparent watercolor ground, like a fixative?
It does seal the paper somewhat but I’m not sure if it would allow for painting watercolor over something not absorbent. It would be interesting to experiment with that.
I second what Kathleen said. You can paint with watercolor on top of this gelatin ground. You do lose some of the absorbency of the paper. But if you are asking if you can apply it as a sort of fixative layer, you may be able to spray it while it's warm, and that in theory would create a transparent fixed layer (although I might recommend looking into casein fixative with a grain alcohol vehicle, because the alcohol won't activate the watercolor, and it would sort of do the same thing... Brushing it over would likely re-activate the watercolor paint, because there is water in the gelatin mixture.