The framer might be meaning that if the print is floated it will need tape to hold it in place where as you can use Archival polyester strips or corner to hold a print in place when placing behind a mount as the strips and corners don’t leave any marks or glue on the print.
Don’t jump the gun and think your framer doesn’t know what he’s talking about. Ask him to explain the process.
Acid free tape unless its removed properly will always leave some kind of mark on the paper it was attached to.
P90 is the tape most framers use and its quite hard to remove without leaving a mark.
A Japanese tape with wheat paste is much easier to remove however it should really be left to an expert to remove.
However, I don’t see the problem with leaving the tape on the back of the print if you wanted to deframe it. It is acid free after all and not doing any damage to the print if left in place.
I have a Napalm Banksy print with the skin of the paper removed from the back as the original owner tried to remove the acid free tape himself. I would have preferred the tape to be left in place as it made no difference leaving it on the print when I reframed it.
I wouldn’t find another framer I’d ask the current one what he means by his comment that floating leaves marks on the paper and ask him what tape he uses.
A lot of people on here are quick to say the framer doesn’t know what he’s talking about and while I see a lot of framers using the wrong materials the ones that get recommended on here are usually ok.
cheers
