I’ve found that a scissored very narrow strip of computer paper
under the ring fills the bill. Also, I usually don’t need
a whole strip; something half the diameter of the
ring does the trick.
Fingernail polish remover is a weaker version of acetone is what I use to unbond superglue.
On most surfaces, after the glue has set and dried, if you sharpen one of your fingernails, you should be able to slide it under the shiney stuff (super glue residue) and peel it right off without any solvent needed.
Yup…have given up on all the paper and hankerchief methods and have had good luck w/ superglue and silver rings. The glue doesnt seem to stick to the ring but it builds up the wood to a really good tight fit…ie doesnt come off.
I find that the superglue on the area aroud the crack is very friable and adheres only weakly to he flute joint.
A sharp knife used at the right angle ( not right angles! ) takes off the excess very easily and so far I have had no trouble. I have done two this afternoon. tidying up old repairs.
A little polish with a fine oiled abrasive paper and a bit of linseed oil finishes things off nicely.