There is quite a lot of material on mounting works of art and it can be quite confusing. Let me start with this article I posted on securing pastels (among other conservation concerns) to a substrate to minimize the damage from movement:
http://www.bmi.net/knapp/iapsmerrill.html
Followed by an article refering to THAT article by the Connecticut Pastel Society:
http://ctpastelsociety?usefullinks?html
Add to that: http??
www.nybooks.com/articles/6051
I cannot for the life of me get the URL of Talas to work. It is a conservators supplier of tapes adhesives etc. . It discusses and sells Beva products. Do a search tor Talas on Google and click on the site and then click on adhesives.