20 ml vial labels: panel with a fill-level window, or a custom wrap
A 30 mm body gives you real estate for a two-column layout: fields on the left, QR and barcode on the right. Same water, smudge, and abrasion resistant film.
Printed inline in full color on our digital press. No plates, no plate fees, and a 50-label minimum per design, so a short run of 20 ml vial labels costs what a short run should.
20 ml vial dimensions
Nominal per ISO 8362-1 or the common serum-vial equivalent. We cut every die to your measured outside diameter, so send calipers numbers with your quote if your vials differ.
| Nominal designation | 20R |
|---|---|
| Body outside diameter | 30 mm |
| Vial height | 55 mm |
| Neck finish | 20 mm |
| Wrap label length | 3 in panel, or 3.75 in custom wrap |
| Usable label height | 1 in (1.25 in on a measured sidewall) |
| Cap circle diameter | 0.75 in |
Fit spec
3 × 1 in applies as a panel on a 30 mm body and leaves a clear strip to read fill level. A full wrap needs about 3.75 in of length, which is a custom die we quote per order. The ISO 20R sidewall is about 35 mm straight, so keep label height at 1.25 in or under.
Label size: 3 × 1 in (custom wrap quoted) · dielines on the artwork guidelines page
Material options
White matte film (recommended) or white gloss film. Permanent acrylic standard, freezer-grade adhesive on request.
- White matte film (BOPP): the default for vials
- White gloss film: saturated color, wipeable
- Clear film: dark art only, no white ink
- Freezer-grade adhesive: on request for storage below zero
Full stock guidance on the vial materials guide and the waterproof vial labels page.
Compliance fields
Structured template slots. Fill what applies, omit what doesn't. Content is yours; legibility is ours.
- Product name
- Strength / concentration
- Volume
- Lot number
- Batch number
- Manufactured date
- Expiration / retest date
- QR or barcode
- COA reference
- “For research use only. Not for human use.” (recommended default)
Cap circle stickers
A 0.75 in circle sits inside the flip-off cap of a 20 mm finish with a small margin. Suppliers use it for a color code, a strength, or a second lot mark that survives when the wrap is turned away. Circles under 2 in are cut as a custom die, so request them on the quote form with the wrap and we price the pair together.