E-4812 — −196°C Liquid Nitrogen Storage Label

Overview

When biological samples enter ultra-low-temperature or liquid-nitrogen storage, the label becomes part of the sample's traceability system. Conventional labels may become brittle, lose adhesion or become unreadable after prolonged exposure to extreme cold and repeated freeze-thaw cycles, and once identification is lost the connection between the sample and its data may be difficult — or impossible — to recover. E-4812 is designed specifically for frozen laboratory sample identification, including polypropylene cryovials, test tubes and storage boxes. Once correctly applied, the label is designed to remain securely attached and clearly identifiable throughout long-term cryogenic storage, including temperatures down to −196°C.

Features

• Direct application at −80 °C — label frozen PP cryovials and laboratory containers without warming the sample first.
• Long-term storage down to −196°C — service temperature range −196°C to +80°C, so one construction stays with the sample through storage, retrieval and subsequent handling.
• Up to 10 freeze-thaw cycles — thaw at room temperature or in warm- or ice-water, then refreeze, with the label staying attached and the identification intact.
• 7 N initial tack (FTM 9) — permanent water-based acrylic adhesive engineered for demanding low-temperature applications.
• Flexible film for curved containers — white coated biaxially oriented co-extruded film, 56 µm, 85% opacity, suited to cryovials and test tubes.
• Variable data that stays readable — flexo, screen, offset, UV inkjet and thermal-transfer printing; use a wax-resin or resin ribbon selected for the application.
• 132 µm total construction on a white glassine liner built for converting, die-cutting and dispensing.

Specifications

• Apply directly at −80 °C to frozen surfaces. Do not apply labels while containers are immersed in liquid nitrogen.
• Application temperature and service temperature are different figures: −80 °C is the frozen-surface temperature at which the label can be applied; −196 °C is the temperature a correctly applied label is designed to withstand in long-term storage.
• Long-term storage above +25°C or at high humidity may shorten shelf life.
• Cryogenic performance depends on container material, surface condition, application temperature, print method and storage process. Evaluate the complete label + ribbon + container + process under your own laboratory conditions before full-scale implementation.

Applications

• Biobanking — long-term identification of biological samples stored at ultra-low temperatures
• Cell and tissue storage — cryogenic containers in research and clinical laboratories
• Pharmaceutical and biotechnology research — frozen research samples, reagents and biological materials
• Clinical laboratories — specimens and frozen sample containers through storage and retrieval
• Cryogenic storage boxes — PP and cardboard boxes used in freezer and liquid-nitrogen workflows
• PP cryovials, laboratory test tubes and other frozen sample containers