
Carboy and water bottle safety seal bands
A band that tears on first opening: proof that carboys, PET bottles and drink packs have not been touched.

Short answer
A carboy and water bottle safety seal band is a perforated heat-shrink band around the cap and neck that tears on first opening. It shows that the water or drink is sealed and, when printed, also carries brand and lot information.
What is a carboy safety seal band?
A carboy safety seal band is a thin band slipped over the cap of carboys, PET bottles and drink packs and shrunk with heat. When the cap is first opened the band tears along its perforation, so the buyer can check that the product arrived sealed. For general information see our sleeve safety seal band page.
Which packs is it used on?
- Carboys: caps of large-volume water and drinks
- PET water bottles: cap and neck sealing
- Juice and milk bottles: glass and plastic caps
- Carbonated and flavoured drinks: as a single film together with a sleeve label
How is the band size determined?
Because carboy caps come in different diameters, we prepare the band to the cap diameter and neck height. Just tell us the cap circumference and the height the band should cover.
| Pack | What to watch for in the band |
|---|---|
| Carboy | Wide cap circumference and neck height; sturdy film |
| PET water bottle | Tight fit on the narrow cap and neck form |
| Glass drink bottle | Shrink that suits a metal or plastic cap |
| Sleeve-labelled bottle | Option to make band and label as a single film |
Printed and clear options
A clear band keeps the colour of the bottle and cap. A printed band can carry brand colour, logo and lot information; for variable data such as filling date the coding system on your line can be used. For labels see our shrink sleeve labels page.
FAQ
Frequently asked.
Is there anything else you would like to know? Write to our sales team or call us and we will get back to you.
What is a carboy safety seal band?
A carboy safety seal band is a perforated band slipped over the cap and shrunk with heat, which tears on first opening. It shows the product is sealed and covers the cap.
Is a safety seal band needed on water and drink packs?
The legal requirement depends on the product and sales channel. Many buyers and retail chains want sealed products; we recommend checking the relevant regulations and buyer terms for your product.
Which cap sizes can be banded?
We make bands to size. Share the cap diameter and neck height of your carboys, PET bottles or glass bottles.
What material is the band made from?
Usually heat-shrink films such as PVC, PET-G or OPS. The suitable film depends on the pack shape and the filling conditions.
Can I order the band as a single film with the label?
Yes. A sleeve label and a safety seal band can be made as a single film, giving both label and seal in one application step.
Can brand and lot information be printed on it?
Yes. The band can be printed in your brand colours; variable data such as lot and date can be added with the coding system on your line.
Is special equipment needed to apply it?
In series production a heat tunnel is used; for small runs a hand-held heat source also works. Describe your line and we will prepare the right band and roll direction.
Is there a minimum order quantity?
No, we have no minimum order requirement. We can quote for small batches and trial runs as well.
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