The first reason is to seal a porous surface such as a painted chalkboard so that you can easily erase your liquid chalk markers.
Chalk markers for chalkboard painted walls.
Liquid chalk markers 10 pack with gold silver bold dry erase marker pens for blackboard windows chalkboard signs bistro 6mm reversible tip 50 chalk labels included 4 2 out of 5 stars 10 12 95 12.
Positive art chalk markers in a set 30 different colors mean the world is your chalkboard.
The second reason is you would like to seal over top of your chalk markers so they can t be erased.
This method is perfect for erasing chalk marker marks from any surface that have been painted with chalkboard ink.
There s no limit to what you can create with this collection of colors.
It looks like chalk but is more vibrant and lasts longer.
Every premium hue is non toxic and works on any non porous surface.
There are a couple of reasons why you might want to seal a chalkboard.