My friend and fellow Watercolor Instructor Jeannie Vodden asked me if I knew how to remove masking fluid that had been on a painting so long it was stuck for good. The only thing I could think of was to try to pick it off with a sharp blade like a razor blade or Exacto knife. She said she was thinking the same thing, but it really does not work very well. So I am throwing the question out there and hope someone will have the answer and write a comment below.
By the way, Masking Fluid becomes “one with the paper” when it is
A left on too long, a few weeks is OK a few months or years is not
B heated up, so don’t leave in the car on a sweltering summer day or blast it with a hair dryer too close to the paper.
If you have the answer you will truly be a watercolor hero!