A metallic label is not one product. Aluminium-foil laminated paper, metallised film and pearlised film all read as "silver" on a shelf, but they are built differently, behave differently under heat, moisture and abrasion, and sit at different price points. Buyers often ask for "a foil label" when what they actually need is one of these three. Three questions separate them: does the face have to block or conduct something, does it have to survive a heat process, or is the metallic look the entire requirement?
What the metallic face is actually doing
On a label, a metallic face is doing one of three jobs, and they are not interchangeable:
- Barrier. A continuous metal layer stops light and slows moisture vapour. This matters on cosmetics, on products with light-sensitive contents, and on anything held in humid storage.
- Optical. A reflective surface redirects light. That is what makes a label read as premium — and also what makes a barcode printed on it hard to scan.
- Functional. A metal layer can carry a static-dissipative or shielding function. Where that is the requirement, decoration is a side effect rather than the goal.
Most metallic-label projects that disappoint come from choosing the face by appearance and then discovering that the function was the real requirement — or the reverse.
The three constructions
Aluminium-foil laminated paper. A thin aluminium foil, typically in the 7–9 µm range, is laminated to a paper face. This is the only one of the three that is genuinely metal. It blocks light, slows moisture, takes embossing and dead-fold, and gives the hardest, most solid metallic appearance. It is also the least conformable: on a container with a small radius it lifts at the edges unless the liner and adhesive are chosen for that surface.
Metallised (aluminised) film. Aluminium is deposited onto PET or BOPP in a vacuum chamber, producing a metal layer measured in tens of nanometres rather than micrometres. The result is a highly reflective, flexible face that conforms to tight diameters and curves. Because the layer is so thin, it behaves as an optical coating more than a barrier: it reflects strongly but does not block light or moisture the way foil does.
Pearlised film. There is no metal here at all. A pearlised BOPP contains microscopic voids that scatter light internally, producing a soft silver-white with a satin rather than mirror finish. It is the least expensive way to reach a metallic-looking face, and it is the one to choose when the requirement is purely visual.
Typical ranges — confirm against the actual batch. Foil lamination: 7–9 µm aluminium on 60–90 gsm paper. Metallised film: 12–50 µm total film thickness. Pearlised film: 40–80 µm. None of these figures predicts performance on your container; the adhesive and liner usually decide whether the label stays on.
Choosing by requirement
| What you actually need | Foil-laminated paper | Metallised film | Pearlised film |
|---|---|---|---|
| Light and moisture barrier | Yes — the only real option here | Reflective, not a barrier | No |
| Conform to small diameters and curves | Poor — lifts at the edges | Good | Good |
| Survive a heat process or hot fill | Good, subject to the adhesive | Check the film's own temperature limit | Limited |
| Embossing, dead-fold, tactile finish | Yes | No | No |
| Mirror-level reflectivity | Good | Best | Satin only |
| Lowest-cost metallic look | Highest cost | Middle | Lowest |
Where metallic facestocks go wrong
- A barcode on a reflective face. Specular reflection defeats many scanners. Where the label must carry a barcode, move it to a matte panel rather than accepting a permanent no-read rate.
- Foil on a curved container. The failure rarely shows at application; it shows days later as lifted edges.
- Assuming "metallised" means "barrier". A vacuum-deposited layer is thin by definition. If light or moisture protection is the point, this is the wrong material.
- Printing on pearlised film as if it were paper. Surface energy differs. Inks and ribbons need to be matched to the film, not carried over from a paper specification.
FAQ
Is a metallised label the same as a foil label?
No. "Foil" normally means a laminated aluminium foil with a metal layer measured in micrometres. "Metallised" or "aluminised" means a vacuum-deposited layer measured in nanometres. They look similar on a shelf and behave very differently as barriers.
Can I print a barcode on a metallic label?
You can, but expect a higher no-read rate. Reflective faces scatter the scanner's beam. A matte overlaminate or a reserved matte panel solves it more reliably than adjusting print settings.
Does a pearlised label contain metal?
No. The effect comes from light scattering inside a cavitated film. That is why it is the lowest-cost metallic-looking option, and also why it provides no barrier at all.
Will a foil label survive a hot-fill line?
The foil itself handles heat well; the adhesive and the paper backing usually fail first. Specify the process temperature together with the dwell time, not the peak temperature alone.
Browse related products
Aluminium foil paper labels, aluminised film labels and pearlised film labels are supplied to order. See aluminium foil paper labels, aluminised film labels and pearlised film labels. For the wider facestock picture, compare PET film labels and functional labels.