Uni Posca Marker Pen - PC-7M - Red

To make the ink permanent on glass or porcelain, bake the decorated item in an oven at 160°C for 45 minutes. Optionally, after baking, spray with a clear varnish for added protection.

Yes, Posca inks are mixable. You can blend colors when they are wet, or paint over a dry layer with a different color for opacity.

No, the Posca ink does not bleed through paper, making it safe to use in sketchbooks and on lighter-weight paper.

Store Posca markers horizontally with the cap on tightly to prevent the nib from drying out and to ensure even ink flow.

If the tip gets clogged, you can try rinsing it under water and gently re-pumping it on scrap paper. For stubborn clogs, the tip might be removable and cleanable, but refer to specific product care instructions.

While the Posca PC-7M works on many surfaces, it is best avoided on extremely oily or greasy surfaces where adhesion is poor. Always test on an inconspicuous area if unsure.

The product description specifies 'Red' as the writing color. For precise shade representation, it is always recommended to consult official color charts or swatches.

Ensure the marker has been properly shaken and the nib primed by pumping it on scrap paper until ink is visible.

Allow the first layer to dry completely before applying a second coat for full opacity. Ensure the marker is adequately shaken.

Wipe the area immediately with a damp cloth. If the ink has begun to dry, a scraper or appropriate cleaner for the surface may be needed.

Ensure there is no dried ink around the cap. If the cap is stiff, gently twist it while pulling.