I have had questions put to me and my own concerns about working with alcohol ink on waxed paper. How archival could these paintings be? From my online searches the coating wax is described as purified paraffin but I can find nothing about the paper that is used in the process. Is it acid free? Probably not and because I crumple the paper to expose it I felt I needed to address this issue. I found Krylon's 'Make It Acid Free' spray
, (link) available at Dick Blick or Jerry's Artarama in the US. I crumpled my paper, then treated both sides with this spray before applying the inks. I found no difference in the way the inks reacted on the treated waxed paper and feel much better about the longevity of my faux batik ink paintings.