According to the manufacturer, Sharpie permanent markers are designed to write practically everywhere, however the ink does not tend to stick or last long on non-porous surfaces, like ceramics.
Non-porous surfaces are those which do not allow liquid or air to pass through them. These surfaces also include glass, plastics, metals, and varnished woods.
A "cleanroom" is a controlled environment area (CEA) typically used for manufacturing items that require a low level of environmental pollutants.
Airborne particles are also controlled within a cleanroom!
Sharpie products, such as the Ultra Fine Tip Retractable Permanent Marker, are produced in a cleanroom, making their products cleanroom certified!
Following these steps can help restore your Fineliner Pen:
Pour about one cup of warm water into a bowl.
Put the marker(s) tip-down in the water.
Let the markers dry on a rag.
Replace the caps when done.
Alternatively, use a few drops of vinegar.
Consider injecting water into the marker.
This caddy kit can be easily mounted to any surface using magnets or double-sided tape!
Good markers are essential for students and professionals. On Time Supplies stocks thousands of markers in a wide variety of colors and styles that meet any need. On Time Supplies discounts bulk orders, including dry erase markers in bulk, EXPO markers in bulk and many more. Take advantage of fast shipping from On Time Supplies, and you get your markers in as little as a day. If you need more information on the supplies featured at On Time Supplies, or on GSA pricing, call us toll free at 1-866-501-6055. We're happy to answer any supply questions.