Masking Fluid (Liquid Frisket) Watercolor Technique
Removing the mask…
To remove dried liquid frisket you need a Natural Rubber Pickup. They come in little squares in paper sleeves. They are made of a crepe, a crude rubber used for the soles of shoes. It has a high tack.
Gently stroke the dried liquid frisket from the edge of the painted area into the masked area. I work in short strokes from top to bottom or left to right, pulling with an even light pressure.
The rubber pickup will roll and pull up the dry liquid frisket. Do this carefully and remove all traces of frisket.
If your paper is not totally dry, you can accidentally pull some paper fibers up with the frisket.