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Because of their semi-permanent nature, wet wipe markers are often used to draw a template, especially in school classrooms or on calendars (to mark the boxes). Dry erase markers can usually be applied on top of the wet wipe marker, and erased without touching the wet wipe marks.
A permanent marker can also be removed by drawing over it with a dry erase marker on non-porous surfaces such as a whiteboard, [3] as dry erase markers also contain a non-polar solvent. Most dry-erase board cleaner solutions also contain effective organic solvents like 2-butoxyethanol to remove the pigment.
One type of whiteboard pen (also called a whiteboard marker or dry erase marker) was invented by Jerry Woolf of Techform Laboratories and later patented by Pilot Pen in 1975. [9] It is a non-permanent marker and uses an erasable ink that adheres to the writing surface without binding to or being absorbed by it.
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A fine-tip permanent marker is a staple item for any home, office, or classroom, whether for labeling, doodling, or taking notes. It is most commonly available in two sizes: the standard fine tip ...
In August 1976, the company launched the first Expo dry erase marker. [4] In November 1986, the company launched a new marker named Expo II. It featured an alcohol-based ink instead of methyl isobutyl ketone. Sanford discontinued the Expo 2 in the 2010s and changed this line to the alcohol-based ink. [5] Former "Sanford" logo, used until 2019