Exterior / Interior Posterman Chalk Pens for Chalkboards, Whiteboards and Glass.
Here you will find Semi Permanent Posterman Chalk Pens, these can be used for interior or exterior use, these are ideal for exterior use for a-boards / Pavement Signs .
These Semi Permanent Posterman Chalk Pens are rain proof so work better for exterior use, but do tend to stick to the board more than the interior chalk pens but can sometimes cause ghosting effect.
These are ideal for exterior use if you intend on changing the boards on a regular basis, but if left on for sometimes can leave a ghosting effect.
If you need chalk pens for interior use we would recommend the Interior Chalk pens as we have found that these interior chalk pens simply wipe off with a wet wipe or wet cloth.