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Whiteboard marker on a clapperboard. A whiteboard marker— or dry-erase marker— uses an erasable ink, made to be used on a slick (or matte-finished), non-porous writing surface, for temporary writing with overhead projectors, whiteboards, glass, and the like. They are designed so that the user can easily erase the marks using a damp cloth ...
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.
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.
Permanent markers and use of regular dry erase markers can create problems on some interactive whiteboard surfaces because interactive whiteboard surfaces are most often melamine, which is a porous, painted surface that can absorb marker ink. Punctures, dents and other damage to surfaces are also a risk.
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
Let’s face it: the world is designed for right-handed folks, from notebooks and pens to instruments, gears, and tools.Left-handed people have to struggle to find things that work for them or ...
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