Built for Durability with QL-425 & QL-435

Lindsay Kisiloski
2026-04-21T15:59:04-04:00

Extreme environments demand more from your labels. With advanced water-based pigment ink technology and the right materials, QL-425 and QL-435 deliver durable, high-quality labels that withstand moisture, chemicals, and harsh conditions.

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In industries where labels are exposed to moisture, chemicals, abrasion, and outdoor conditions, durability is critical. Standard labels often fail under these stresses—leading to fading, smudging, or complete label breakdown.

Water-based inkjet printing, when paired with the right technology and materials, offers a powerful solution for producing labels that can withstand even the most demanding environments.

Why Extreme Environments Are Challenging

Labels used in harsh conditions must endure:

Water and humidity (refrigeration, marine, outdoor use)

Chemical exposure (industrial and laboratory settings)

UV light and temperature fluctuations

Physical abrasion and handling

Failure in any of these areas can result in lost information, safety risks, and regulatory non-compliance.

The Advantage of Water-Based Pigment Ink

Unlike dye-based inks, water-based pigment inks are engineered for durability. They:

Sit on top of the substrate for better resistance

Offer superior water and chemical resistance

Maintain color integrity over time

Provide sharp, smudge-resistant output

This makes them ideal for industrial labeling applications where longevity is essential.

Powered by QL-425 & QL-435

The QuickLabel QL-425 and QuickLabel QL-435 are purpose-built to take full advantage of water-based pigment ink technology.

1. Durable, High-Quality Output

Both printers produce labels with excellent resistance to water, chemicals, and fading—ideal for extreme environments.

2. Wide Media Compatibility

When paired with synthetic materials like BOPP or PET, these printers can produce highly durable labels suitable for industrial use.

3. On-Demand Production

Print labels as needed, eliminating the need for large inventories while maintaining flexibility for changing requirements.

4. Compliance-Ready Performance

With the right media, these printers can support demanding standards such as chemical labeling and marine applications, ensuring reliability and safety.

Applications in Extreme Environments

Using the QL-425 and QL-435, businesses can confidently produce:

Chemical and hazardous material labels

Outdoor equipment labeling

Refrigerated and frozen product labels

Laboratory and pharmaceutical identification

Marine and industrial packaging labels

Best Practices for Maximum Durability

To achieve optimal performance in harsh conditions:

Use synthetic, non-absorbent label materials

Ensure compatibility between ink and substrate

Test labels under real-world exposure conditions

Optimize print settings for durability and adhesion

Source: Water-Based Inkjet Labels for Extreme Environments

Historically, water-based inkjet labels were considered unsuitable for such harsh conditions due to issues like smudging, fading, and poor adhesion. However, AstroNova developed a specialized matte synthetic label material (Material #236) with a cryogenic adhesive and inkjet-receptive coating to overcome these limitations.

At AstroNova’s request, an independent laboratory conducted testing on label material #236 to validate its performance under freezer, liquid nitrogen and autoclave conditions. Samples were printed with QuickLabel printers using water-based pigment inks (used in models Kiaro!D / QL-120D / QL-120De). Printed samples were tested by the independent lab in Freezer, Liquid Nitrogen, and Autoclave conditions on several different substrates.

The following details independent lab testing of these labels across extreme temperature cycles:

Freezer (-80°C)

Liquid nitrogen (-196°C)

Autoclave (121°C, high pressure steam)

Results showed that the labels maintained:

Strong adhesion

No ink bleeding or fading

Consistent readability across all environments

The conclusion emphasizes that modern water-based inkjet labels—when engineered correctly—can now reliably perform in demanding industrial, medical, and laboratory applications.

1. Freezer (-20°C to -80°C)

Challenges:

Adhesive failure: Many labels lose adhesion at ultra-low temperatures.

Cracking or brittleness: Some label materials (especially paper-based) can become brittle and crack.

Condensation: Moving samples in and out of the freezer can cause moisture buildup, weakening adhesive and smudging print.

Frost: Surfaces with frost or ice prevent proper label adhesion.

2. Liquid Nitrogen (-196°C)

Challenges:

Extreme cold: Labels and adhesives must withstand deep cryogenic temperatures without delaminating or becoming unreadable.

Adhesion at ambient before immersion: Labels need to stick before exposure—many fail during the freeze.

Cracking or shattering: Incorrect label materials can shatter or peel in LN2.

Resistance to phase changes: Immersion and thawing cycles can degrade standard labels.

3. Autoclave (121°C, high pressure, steam)

Challenges:

High heat and pressure: Many adhesives melt or degrade.

Steam and moisture: Causes labels to peel or print to run.

Delamination: Label layers may separate.

Ink fading or bleeding: Non-autoclave-safe printing methods fail.

Common challenges encountered were the following:

Freezers: Inks could smear or run due to condensation or humidity.

Liquid Nitrogen: Ink often becomes brittle or fades, and the label adhesives may fail.

Autoclave: Steam and heat can dissolve or blur the ink; the label may peel.

Test Methods

Freezer: @ -80°C (-112°F): Three cycles of 16 hours at -80°C then 8 hours at 22°C

Liquid Nitrogen: @ -196°C (-321°F): Three cycles of 4 hours at -196°C then 20 hours at 22°C

Autoclave: @ 121°C (250°F): Three cycles of 20 minutes at 121°C @ 35PSI then 1 hour at 22°C

Observations

All labels remained adhered to all the tested surfaces throughout the three cycles of exposure.

No bleeding was observed as a result of exposure to frozen and autoclave environments

No color fading was detected after exposure to freezing or autoclave environments.

This test data is provided solely to demonstrate the label It is the customer’s sole and exclusive responsibility to confirm the product’s suitability for their specific application.

Final Thoughts

Extreme environments require more than standard labeling solutions. With the QuickLabel QL-425 and QuickLabel QL-435, businesses can produce durable, high-performance labels using advanced water-based pigment ink technology.

The result is reliable, long-lasting labeling that protects your products, ensures compliance, and maintains brand integrity—no matter the conditions.