How to Apply masking fluid

Answer 1

Masking fluid enables you to block out areas a watercolor so you don't have to worry about accidentally painting there. For example, instead of painstakingly trying to paint around the petals of a white daisy, paint the petals in masking fluid first. You can then paint freely safe in the knowledge that your white petals will appear pristine when you rub off the masking fluid (do it as soon as your painting is dry; it becomes harder to remove the longer it's on the paper).