for PLA mk3 aluminium flipped over at 55C and a smudging of gluestick its a bond made in heaven!. downside is you have to wash/scrape off the old glue once a week as it dries out to leave a lumpy chalky white substance which left untreated make a ugly first layer. the other downside theirs no guarantee the bed comes flat! ever y one i have came warped!.
but what ever you got now try a little glue stick and see for yourself. if you dont like that grab a sheet of of printbite "read it good for a number of different filaments