As I'm Snowed in at the moment, I thought I would get the sellotape off two recent posters I've bought. So while at it I took a few pics, just to show anyone who hasn't tried it , that it won't damage your poster.
This tape had been on looking at it, since the film was show in the 60's. The glue had burned into the paper somewhat, but the longer it stays there the more damage it will cause. So always get tape off as soon as you can.
all you need is lighter fluid, and a not to sharp knife
soak the tape and surrounding area in the fluid, and leave for a moment. You need to let the fluid soak under the tape,
but it still needs to be wet when you start to lift the plastic back of the tape up...
When you have removed the tape, I lightly wipe any access glue up, or you may need to use a dull knife
being careful not to dig into the paper.
Then let the paper dry fully.
And onto the next bit of tape...
As you can see, there's no damage to the poster, other than the burning of the glue in this case as the tape had been on
that long, Tape that hasn't burned into the paper will come off with not sign it was there at all.
Half a roll of crappy Sellotape...
Keep an eye on the table as it can sometimes get slightly sticky, I always wipe the table with the cloth and some more
lighter fluid before moving on to the next bit. Also wipe the table clean when finished as you will cop it from
Yvonne if there's any mess...
I'm sure if your sending a poster off for resto, Who ever you choose to do it would prefer this done before they get it as it will save them the chew, and you a few bob.