So I was bored in class looking at MadeSolid’s website (the guys making colored resins for the Form 1 http://www.indiegogo.com/projects/high-quality-3d-printer-resin) and noticed on their blog that they have an article on replacing the PDMS layer on the bottom of the resin tray so you don’t have to buy a new one. I know this was a hot topic before and not sure if it ever got resolved. Figured I’d share!
http://blog.madesolid.com/2013/09/changing-pdms-coating-form1-printer-vat/