The Cape Dory Board

I am re-finishing the teak and I am unsure if and how I should seal the teak before applying varnish (Epifanes). Have searched the board and found plenty of info on this subject. Some have suggested West System, others like CPES. Does anyone have any experience with Interlux Interprime Wood Sealer?

I am also in the process of finishing the teak - but tell me - how would you get all that epoxy off - if you wanted to or if you had a break?? tim