DUPACK
Clear tamper-evident shrink seals

Tamper-Evident Shrink Seals

Clear perforated bands, cut to your size. Free standard delivery in Australia.

Not sure of the size? Enter your cap diameter (mm)Tip: measure the widest part of the cap or neck.
Pack size

$39.95

Free standard delivery in Australia

1

Need printed seals, colours or longer cuts? Request a custom quote.

Product details

Clear, heat-shrinkable plastic bands designed to provide a visible tamper-evident seal for bottles, jars and other containers. Once applied, the bands conform to the shape of the packaging and must be torn or removed to access the product, making them unsuitable for reuse.

Each band features a perforated tear strip for easy removal by the end user. Depending on the application, shrink seals can be fitted around a container’s cap and neck, or used to wrap a larger section of the container body.

Sizing

Important: Layflat width is not the same as container diameter.

To determine the appropriate layflat width:

  1. Measure the widest diameter of the area where the shrink seal will be applied.
  2. Add 1–2 mm to allow for clearance.
  3. Multiply the resulting measurement by 1.57.
  4. Round up to the nearest available layflat width.

Cut length refers to the height of the shrink seal, measured from one open end to the other.

We recommend taking measurements with a steel ruler or vernier caliper to ensure accuracy.

Application

Slide the shrink seal over the area to be sealed, ensuring it is positioned correctly. Apply heat using a heat gun or heat tunnel, typically at 80–120°C, until the material contracts and conforms securely to the container.

Shrinkage occurs quickly, although the required temperature and exposure time will vary depending on the equipment and application.

Made to order

All shrink seals are manufactured and cut to your specified dimensions. As these are custom-made products, we cannot accept returns for incorrect size selections.

Please check all measurements carefully before ordering. Incorrect measurements may result in an unsuitable fit.

If you are unsure which size to select or need assistance with an application, contact us before placing your order.