White-out, also known as correction fluid, is a common office supply used to conceal errors on paper documents. It is typically made of a titanium dioxide-based pigment suspended in a volatile organic solvent, and is applied to the paper using a brush or pen-like applicator. Once applied, the white-out dries quickly, leaving a white, opaque film over the error.
While white-out is effective at concealing errors, it can be difficult to remove from paper if applied incorrectly or if it has been allowed to dry for an extended period of time. There are several different methods that can be used to remove white-out from paper, depending on the type of white-out used and the age of the stain.
