Should a glass be decorated? or a number game? Then these markers are just what you need!
The marker sticks best on a clean, dry and grease-free surface. You must shake the marker well and then gently press the pump tip of the marker up and down until the color flows to the felt tip.
Leave the finished item to dry for 8 hours and place it in a cold room. oven (not hot air or steam). Turn on the oven at 230 degrees C, and after 40 minutes in the oven, the item is hardened. Let it cool until it is cold.