A glass marking pencil is a specialized pencil that is designed for marking glass.
Glass marking pencils are designed and made so that they are able to to leave visible and temporary marks on glass and other non porous surfaces such as ceramics, metal and plastic.
A glass marking pencil often uses soft, water soluble lead which is easy to remove from the glass or surface with a dry cloth or a damp cloth.
The lead in a glass marking pencil is made to be easily wiped away, which makes the glass marking pencil ideal for temporary markings, labeling, measurements or marking lines for cutting.
The glass marking pencils also often come in bright colors including yellow and white which helps to ensure that the markings on the glass area easily visible.
Glass marking pencils are commonly used in glass cutting, glass art, labeling and also general marking tasks on non porous surfaces.
A glass marking pencil is not meant for permanent markings and is only made and meant for temporary markings.
Glass marking pencils can be used on all types of glass.