wut is the best way to remove sail numbers and leave no mark or residue.
Here is something for the Europeans to the point of removing sailnumbers:
I´ve changed the sailnumbers of two sails this year with "Dr. Beckmanns - Fleckenteufel". (See the little bottle in the attachement to this reply.).
It is very soft to the sail, but aft work, there are shaddows be seen on the sail - everywhere, where this fluid had contact that cloth.
First I thought they never go away, but aft sailing each of this sails and doing some capsizings the shadows slowly went away - nothing to see now from that shadows ...
There's been some discussion on TLF of the harmful effects of acetone, so I googled it. The US Department of Health and Human Services has this to say. The possibility of birth defects sounds like reason enough to avoid it. So practice safe sailing, y'all:Chuso007 said:I always have washed my hands with acetone after working with fiberglass.... And/or turpentine also for paintbrushes and so...