Write on glass or chalkboard with a chalk marker or wet erase marker, as this type of pen is also called. The color becomes nicely opaque even against a dark background and can be erased with the help of a little wet paper towel or a damp cloth. When the chalk paint has dried, it can withstand splashes of water. The color also does not smudge, for example, if you lean your hand towards the text when you add something.
Chalk pencil can be used on all non-porous materials.
This chalk pen, Chalk marker PWE-5M, from the manufacturer Uni, has a round tip measuring 1.8-2.5 mm depending on the angle at which you write.
When the pen is new, you need to shake it and press the tip against a hard surface a number of times so that the paint flows. Store the pen lying down.
Tips for cleaning
If your crayon notes have been left untouched for a long time, it may be difficult to remove the color by simply rubbing with a damp cloth/paper. Mix some baking soda in water and use to clean your board or your labels. One teaspoon of baking soda is enough for one deciliter of water. If the color still does not go away, increase the dose of baking soda.