VELLUM.
Having painted on Vellum now for quite a few years I keep coming across articles from people saying about Bucklering and warping of the vellum. This I do not understand, I read things like Gluing down , fixing down with tape, re- wetting which is not a good idea , can be done but should not be needed. May be it is because I make my own vellum out of Deer skin I have never had any problems but can't see that. Could it be people are trying to use vellum like water colour paper which it defiantly is, not.