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Surfaces used with grease pencils include glass, rock, polished stone, plastic, ceramics, acetate, and other glazed, lacquered or polished surfaces, and metal, as well as the glossy paper that is used for photographic printing (particularly for contact sheets), x-rays, maps, and for marking edits on analog audio tape and film.
Grease pencils on plastic slates were used both by NASA and the Soviet space program as an early substitute for wood-cased graphite pencils. A grease pencil is simple with no moving parts, and the paper shroud is peeled back when needed. The disadvantage is that the paper wrapper requires disposal. Writing done with the grease pencil is also ...
Graded pencils can be used for a rapid test that provides relative ratings for a series of coated panels but cannot be used to compare the pencil hardness of different coatings. This test defines a "pencil hardness" of a coating as the grade of the hardest pencil that does not permanently mark the coating when pressed firmly against it at a 45 ...
Soviet cosmonauts used pencils, and grease pencils on plastic slates until also adopting a space pen in 1969 with a purchase of 100 units for use on all future missions. [10] NASA never approached Paul Fisher to develop a pen, nor did Fisher receive any government funding for the pen's development. [9]
Pencils are commonly used at polling stations instead of pens. This is because ink might run on to different sections of the ballot and obscure the voter’s choice. The Facts.
Sheriff's officials maintained a map of evacuation areas covered with clear plexiglass and a grease pencil to mark it. The team had a methodical process for deciding whether or not to issue ...
Using a black Royal Sovereign Chinagraph pencil I am exploring methods of blending, spreading, removing and fixing the black marks on paper, for artwork sketching and drawing. The black marks can be removed easily by washing in cold soapy water. That is not what would be expected from a wax, but is typical of an oil or grease I believe.
Here's how to put that little white sponge to use. ... This polymer sponge works like a pencil eraser. The active ingredient is melamine (a nitrogen-rich organic base) that acts as a mild abrasive ...
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