What is grease pen?

A grease pen, also known as a china marker or wax pencil, is a writing tool that is typically used to mark slick or non-porous surfaces such as glass, metal, plastic, and other materials. The pen is made up of a hard, waxy substance that is encased in a paper or plastic wrapping.

The grease pen was first introduced in the early 1900s and has been widely used in many industries such as construction, manufacturing, and automotive. Because of its ability to make marks that are waterproof and resistant to fading, it has been popular to use on surfaces exposed to harsh weather conditions or extreme temperatures.

The marks made by a grease pen can be easily removed using solvents or rubbing alcohol. The pen comes in different colors such as black, white, yellow, and red, to suit different purposes and preferences.

Overall, the grease pen is a versatile tool that is useful in various settings where making marks on slick surfaces is essential.