Activity Feed › Forums › Sign Making Discussions › Vinyl › Mactac 5921 – Looking for personal experience please? Vinyl Mactac 5921 – Looking for personal experience please? Posted by Gary Birch on November 17, 2014 at 9:06 am Hi All Does anyone have any experience of Mactac 5921 ? Is it comparable to MD5? Thanks in advance Gary Gary Birch replied 9 years, 5 months ago 1 Member · 0 Replies 0 Replies Sorry, there were no replies found. Log In to Reply Log in to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Log In to Reply Start of Discussion 0 of 0 replies June 2018 Now