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Ink know-how

Weatherproof Markers Testing

Weatherproof tests are vital for determining if marker ink will stand up to light and water. See how edding tests their weatherproof pens and markers here.

Testing Lightfastness of Markers

Lightfastness is an important quality for markers to have, so they are tested to see how fade resistant they are. Here is how the test works.

Low Corrosion Markers for Industry

Low chloride markers are important for meeting safety standards across many industries. Learn more about markers and low corrosion ink here at edding.

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