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A whiteboard (also known by marker board, dry-erase board, dry-wipe board, and pen-board) is a glossy, usually white surface for making non-permanent markings. Whiteboards are analogous to blackboards , but with a smoother surface allowing for rapid marking and erasing of markings on their surface.
Wet wipe markers were often used on overhead projector transparencies, as they could be stored and transported easily, unlike a traditional chalkboard. With the rise of computerized slide-shows (e.g. PowerPoint ) in the classroom and office, overhead usage has reduced substantially, and with it, the wet wipe marker.
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.
The tip of a green felt-tip pen A box of colored felt-tip pens Marker pen. A marker pen, fine liner, marking pen, felt-tip pen, felt pen, flow marker, sign pen (in South Korea), vivid (in New Zealand), flomaster (in East and South Slavic countries), texta (in Australia), sketch pen (in South Asia), koki (in South Africa) or simply marker is a pen which has its own ink source and a tip made of ...
Grease pencils are available in several forms. The outer casing may be made of wood (like an ordinary pencil) and sharpened with a knife or pencil sharpener. Other types are covered in paper and sharpened by pulling a string to peel off the paper, needing no additional tools to remain functional.
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Artists' charcoal is charcoal used as a dry art medium. Both compressed charcoal (held together by a gum or wax binder) and charcoal sticks (wooden sticks burned in a kiln without air) are used. [1] The marks it leaves behind on paper are much less permanent than with other media such as graphite, and so lines can easily be erased and blended.
Wood wool boards and wood-wool layers in composite boards are generally manufactured using coniferous wood species, mainly spruce and pine. The wood logs are processed to make wood fibres of various widths, generally between 1mm and 3mm. After drying the wood, it is planed into long fibres in a wood wool machine.