Dave yes on some places, in the past when needed I was using ZAP A GAP, almost impossible to clean up with shiney spots all over, using new CA as JIM SUGESTED MERCURY ADHESIVE MEDIUM, applied with the new DOPPLOR, and I can get it clean does not leave shiney spots and with some scrapping with a XACTO, I can get it off fairly easily, I really do not like to use CA but sometimes it is unavoidable, in some of my past builds and you can see it on my deck clamps have bee using an accerator and found out it was causing some very serious discoloration have not used the accelerator on this MDF at all, I think that so far the MERCURY ADHESIVE WILL BE OK WILL TEST IT OUT, so what is your sugestion as to cleanup. THANKS FOR ALL YOUR HELP Don