100 x 150mm Waterproof Direct Thermal Synthetic LabelsWaterproof polypropylene 4x6 labels on a 25mm or 40mm core, 400 per roll, permanent adhesive. No ribbon needed.
These 100 x 150mm (4x6) labels are made from a synthetic polypropylene facestock instead of paper, so they are waterproof and tear-resistant and keep their grip through moisture, oils, cold and rough handling. Because they are direct thermal, the image is created by heat alone, so there is no ribbon to buy or replace, which keeps running costs low for high-volume despatch. These labels are available in both a 25mm core to suit desktop printers and a 40mm core for higher-capacity industrial rolls, so choose the core that fits your printer.
At a glance
- Size: 100mm (W) x 150mm (L), 4x6
- Material: Synthetic polypropylene (waterproof, tear-resistant)
- Core: 25mm or 40mm | Roll: 400 labels | Adhesive: Permanent
- Print method: Direct thermal (no ribbon required)
Why choose waterproof direct thermal?
- Genuinely waterproof - the polypropylene facestock does not break down when wet or frozen.
- Tear and chemical resistant - stands up to handling, oils and abrasion.
- No ribbon to buy - direct thermal prints with heat alone, keeping costs low.
- 4x6 shipping format - the standard size for cartons, satchels and despatch.
What they are used for
- Waterproof shipping and carton labels
- Cold-store and freezer stock
- Outdoor and washdown labelling
- Drum, crate and asset labels
Specifications
| Label width | 100mm |
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| Label length | 150mm |
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| Core size | 25mm or 40mm (both available) |
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| Labels per roll | 400 |
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| Adhesive | Permanent |
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| Material | Synthetic polypropylene |
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| Print method | Direct thermal (no ribbon) |
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Compatible printers
Suits any desktop or industrial direct thermal printer that accepts a 100mm label width and a 25mm or 40mm core, including Zebra, TSC and similar brands. No ribbon required, just load and print.
Frequently Asked Questions
Are these labels waterproof?
Yes. The synthetic polypropylene facestock is waterproof and tear-resistant, so the label stays stuck and intact in wet, cold and washdown conditions where paper fails.
Do I need a ribbon?
No. These are direct thermal labels, printed with heat alone, so no ribbon is required.
Will the print last outdoors?
The stock is waterproof, but direct thermal print can fade with prolonged heat or UV. For short to medium-term outdoor use they are ideal; for long-term outdoor labels, choose a thermal transfer synthetic label with a resin ribbon.
Which printers fit?
Any direct thermal printer accepting a 100mm width and a 25mm or 40mm core (Zebra, TSC and similar).
What core sizes are available?
These labels come in both a 25mm core (for desktop direct thermal printers) and a 40mm core (for higher-capacity industrial rolls). Choose the core that matches your printer.
Browse the full Synthetic Labels range or all Direct Thermal Labels at POS PLAZA.
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