Cryogenic marker pen is a specialised writing instrument engineered to keep its ink bond intact at ultra-low temperatures all the way down to -196°C in liquid nitrogen (LN2) and -80°C deep-freeze environments. Standard permanent markers use ink formulations that become brittle, fade, smear and crack when exposed to cryogenic conditions. The extreme cold causes the ink to lose adhesion to the surface of plastic tubes, cryovials and cardboard freezer boxes, leaving your samples completely unidentified a catastrophic and costly lab error.
A true cryo marker pen uses specially formulated permanent ink that remains flexible, waterproof and alcohol-resistant even after repeated freeze-thaw cycles. Our Cryomarker Fine Tip – Black or Coloured – Pk4 is engineered precisely for this delivering smudge-proof, fast-drying, permanent identification on cryovials, tubes, freezer boxes, glass, metal, plastic and even Teflon surfaces. Whether you’re in a biobank, IVF clinic, research lab or clinical facility, the right cryogenic marker is non-negotiable for sample integrity.
